// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// Code generated by protoc-gen-go_gapic. DO NOT EDIT.

package datacatalog

import (
	"context"
	"fmt"
	"math"
	"net/url"
	"time"

	gax "github.com/googleapis/gax-go/v2"
	"google.golang.org/api/iterator"
	"google.golang.org/api/option"
	"google.golang.org/api/option/internaloption"
	gtransport "google.golang.org/api/transport/grpc"
	datacatalogpb "google.golang.org/genproto/googleapis/cloud/datacatalog/v1"
	iampb "google.golang.org/genproto/googleapis/iam/v1"
	"google.golang.org/grpc"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/metadata"
	"google.golang.org/protobuf/proto"
)

var newClientHook clientHook

// CallOptions contains the retry settings for each method of Client.
type CallOptions struct {
	SearchCatalog                   []gax.CallOption
	CreateEntryGroup                []gax.CallOption
	GetEntryGroup                   []gax.CallOption
	UpdateEntryGroup                []gax.CallOption
	DeleteEntryGroup                []gax.CallOption
	ListEntryGroups                 []gax.CallOption
	CreateEntry                     []gax.CallOption
	UpdateEntry                     []gax.CallOption
	DeleteEntry                     []gax.CallOption
	GetEntry                        []gax.CallOption
	LookupEntry                     []gax.CallOption
	ListEntries                     []gax.CallOption
	ModifyEntryOverview             []gax.CallOption
	ModifyEntryContacts             []gax.CallOption
	CreateTagTemplate               []gax.CallOption
	GetTagTemplate                  []gax.CallOption
	UpdateTagTemplate               []gax.CallOption
	DeleteTagTemplate               []gax.CallOption
	CreateTagTemplateField          []gax.CallOption
	UpdateTagTemplateField          []gax.CallOption
	RenameTagTemplateField          []gax.CallOption
	RenameTagTemplateFieldEnumValue []gax.CallOption
	DeleteTagTemplateField          []gax.CallOption
	CreateTag                       []gax.CallOption
	UpdateTag                       []gax.CallOption
	DeleteTag                       []gax.CallOption
	ListTags                        []gax.CallOption
	StarEntry                       []gax.CallOption
	UnstarEntry                     []gax.CallOption
	SetIamPolicy                    []gax.CallOption
	GetIamPolicy                    []gax.CallOption
	TestIamPermissions              []gax.CallOption
}

func defaultGRPCClientOptions() []option.ClientOption {
	return []option.ClientOption{
		internaloption.WithDefaultEndpoint("datacatalog.googleapis.com:443"),
		internaloption.WithDefaultMTLSEndpoint("datacatalog.mtls.googleapis.com:443"),
		internaloption.WithDefaultAudience("https://datacatalog.googleapis.com/"),
		internaloption.WithDefaultScopes(DefaultAuthScopes()...),
		internaloption.EnableJwtWithScope(),
		option.WithGRPCDialOption(grpc.WithDefaultCallOptions(
			grpc.MaxCallRecvMsgSize(math.MaxInt32))),
	}
}

func defaultCallOptions() *CallOptions {
	return &CallOptions{
		SearchCatalog: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		CreateEntryGroup: []gax.CallOption{},
		GetEntryGroup: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		UpdateEntryGroup: []gax.CallOption{},
		DeleteEntryGroup: []gax.CallOption{},
		ListEntryGroups: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		CreateEntry: []gax.CallOption{},
		UpdateEntry: []gax.CallOption{},
		DeleteEntry: []gax.CallOption{},
		GetEntry: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		LookupEntry: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListEntries: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ModifyEntryOverview:             []gax.CallOption{},
		ModifyEntryContacts:             []gax.CallOption{},
		CreateTagTemplate:               []gax.CallOption{},
		GetTagTemplate:                  []gax.CallOption{},
		UpdateTagTemplate:               []gax.CallOption{},
		DeleteTagTemplate:               []gax.CallOption{},
		CreateTagTemplateField:          []gax.CallOption{},
		UpdateTagTemplateField:          []gax.CallOption{},
		RenameTagTemplateField:          []gax.CallOption{},
		RenameTagTemplateFieldEnumValue: []gax.CallOption{},
		DeleteTagTemplateField:          []gax.CallOption{},
		CreateTag:                       []gax.CallOption{},
		UpdateTag:                       []gax.CallOption{},
		DeleteTag:                       []gax.CallOption{},
		ListTags: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		StarEntry:    []gax.CallOption{},
		UnstarEntry:  []gax.CallOption{},
		SetIamPolicy: []gax.CallOption{},
		GetIamPolicy: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		TestIamPermissions: []gax.CallOption{},
	}
}

// internalClient is an interface that defines the methods availaible from Google Cloud Data Catalog API.
type internalClient interface {
	Close() error
	setGoogleClientInfo(...string)
	Connection() *grpc.ClientConn
	SearchCatalog(context.Context, *datacatalogpb.SearchCatalogRequest, ...gax.CallOption) *SearchCatalogResultIterator
	CreateEntryGroup(context.Context, *datacatalogpb.CreateEntryGroupRequest, ...gax.CallOption) (*datacatalogpb.EntryGroup, error)
	GetEntryGroup(context.Context, *datacatalogpb.GetEntryGroupRequest, ...gax.CallOption) (*datacatalogpb.EntryGroup, error)
	UpdateEntryGroup(context.Context, *datacatalogpb.UpdateEntryGroupRequest, ...gax.CallOption) (*datacatalogpb.EntryGroup, error)
	DeleteEntryGroup(context.Context, *datacatalogpb.DeleteEntryGroupRequest, ...gax.CallOption) error
	ListEntryGroups(context.Context, *datacatalogpb.ListEntryGroupsRequest, ...gax.CallOption) *EntryGroupIterator
	CreateEntry(context.Context, *datacatalogpb.CreateEntryRequest, ...gax.CallOption) (*datacatalogpb.Entry, error)
	UpdateEntry(context.Context, *datacatalogpb.UpdateEntryRequest, ...gax.CallOption) (*datacatalogpb.Entry, error)
	DeleteEntry(context.Context, *datacatalogpb.DeleteEntryRequest, ...gax.CallOption) error
	GetEntry(context.Context, *datacatalogpb.GetEntryRequest, ...gax.CallOption) (*datacatalogpb.Entry, error)
	LookupEntry(context.Context, *datacatalogpb.LookupEntryRequest, ...gax.CallOption) (*datacatalogpb.Entry, error)
	ListEntries(context.Context, *datacatalogpb.ListEntriesRequest, ...gax.CallOption) *EntryIterator
	ModifyEntryOverview(context.Context, *datacatalogpb.ModifyEntryOverviewRequest, ...gax.CallOption) (*datacatalogpb.EntryOverview, error)
	ModifyEntryContacts(context.Context, *datacatalogpb.ModifyEntryContactsRequest, ...gax.CallOption) (*datacatalogpb.Contacts, error)
	CreateTagTemplate(context.Context, *datacatalogpb.CreateTagTemplateRequest, ...gax.CallOption) (*datacatalogpb.TagTemplate, error)
	GetTagTemplate(context.Context, *datacatalogpb.GetTagTemplateRequest, ...gax.CallOption) (*datacatalogpb.TagTemplate, error)
	UpdateTagTemplate(context.Context, *datacatalogpb.UpdateTagTemplateRequest, ...gax.CallOption) (*datacatalogpb.TagTemplate, error)
	DeleteTagTemplate(context.Context, *datacatalogpb.DeleteTagTemplateRequest, ...gax.CallOption) error
	CreateTagTemplateField(context.Context, *datacatalogpb.CreateTagTemplateFieldRequest, ...gax.CallOption) (*datacatalogpb.TagTemplateField, error)
	UpdateTagTemplateField(context.Context, *datacatalogpb.UpdateTagTemplateFieldRequest, ...gax.CallOption) (*datacatalogpb.TagTemplateField, error)
	RenameTagTemplateField(context.Context, *datacatalogpb.RenameTagTemplateFieldRequest, ...gax.CallOption) (*datacatalogpb.TagTemplateField, error)
	RenameTagTemplateFieldEnumValue(context.Context, *datacatalogpb.RenameTagTemplateFieldEnumValueRequest, ...gax.CallOption) (*datacatalogpb.TagTemplateField, error)
	DeleteTagTemplateField(context.Context, *datacatalogpb.DeleteTagTemplateFieldRequest, ...gax.CallOption) error
	CreateTag(context.Context, *datacatalogpb.CreateTagRequest, ...gax.CallOption) (*datacatalogpb.Tag, error)
	UpdateTag(context.Context, *datacatalogpb.UpdateTagRequest, ...gax.CallOption) (*datacatalogpb.Tag, error)
	DeleteTag(context.Context, *datacatalogpb.DeleteTagRequest, ...gax.CallOption) error
	ListTags(context.Context, *datacatalogpb.ListTagsRequest, ...gax.CallOption) *TagIterator
	StarEntry(context.Context, *datacatalogpb.StarEntryRequest, ...gax.CallOption) (*datacatalogpb.StarEntryResponse, error)
	UnstarEntry(context.Context, *datacatalogpb.UnstarEntryRequest, ...gax.CallOption) (*datacatalogpb.UnstarEntryResponse, error)
	SetIamPolicy(context.Context, *iampb.SetIamPolicyRequest, ...gax.CallOption) (*iampb.Policy, error)
	GetIamPolicy(context.Context, *iampb.GetIamPolicyRequest, ...gax.CallOption) (*iampb.Policy, error)
	TestIamPermissions(context.Context, *iampb.TestIamPermissionsRequest, ...gax.CallOption) (*iampb.TestIamPermissionsResponse, error)
}

// Client is a client for interacting with Google Cloud Data Catalog API.
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
//
// Data Catalog API service allows you to discover, understand, and manage
// your data.
type Client struct {
	// The internal transport-dependent client.
	internalClient internalClient

	// The call options for this service.
	CallOptions *CallOptions
}

// Wrapper methods routed to the internal client.

// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *Client) Close() error {
	return c.internalClient.Close()
}

// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *Client) setGoogleClientInfo(keyval ...string) {
	c.internalClient.setGoogleClientInfo(keyval...)
}

// Connection returns a connection to the API service.
//
// Deprecated.
func (c *Client) Connection() *grpc.ClientConn {
	return c.internalClient.Connection()
}

// SearchCatalog searches Data Catalog for multiple resources like entries and tags that
// match a query.
//
// This is a [Custom Method]
// (https://cloud.google.com/apis/design/custom_methods (at https://cloud.google.com/apis/design/custom_methods)) that doesn’t return
// all information on a resource, only its ID and high level fields. To get
// more information, you can subsequently call specific get methods.
//
// Note: Data Catalog search queries don’t guarantee full recall. Results
// that match your query might not be returned, even in subsequent
// result pages. Additionally, returned (and not returned) results can vary
// if you repeat search queries.
//
// For more information, see [Data Catalog search syntax]
// (https://cloud.google.com/data-catalog/docs/how-to/search-reference (at https://cloud.google.com/data-catalog/docs/how-to/search-reference)).
func (c *Client) SearchCatalog(ctx context.Context, req *datacatalogpb.SearchCatalogRequest, opts ...gax.CallOption) *SearchCatalogResultIterator {
	return c.internalClient.SearchCatalog(ctx, req, opts...)
}

// CreateEntryGroup creates an entry group.
//
// An entry group contains logically related entries together with Cloud
// Identity and Access Management (at /data-catalog/docs/concepts/iam) policies.
// These policies specify users who can create, edit, and view entries
// within entry groups.
//
// Data Catalog automatically creates entry groups with names that start with
// the @ symbol for the following resources:
//
//   BigQuery entries (@bigquery)
//
//   Pub/Sub topics (@pubsub)
//
//   Dataproc Metastore services (@dataproc_metastore_{SERVICE_NAME_HASH})
//
// You can create your own entry groups for Cloud Storage fileset entries
// and custom entries together with the corresponding IAM policies.
// User-created entry groups can’t contain the @ symbol, it is reserved
// for automatically created groups.
//
// Entry groups, like entries, can be searched.
//
// A maximum of 10,000 entry groups may be created per organization across all
// locations.
//
// You must enable the Data Catalog API in the project identified by
// the parent parameter. For more information, see Data Catalog resource
// project (at https://cloud.google.com/data-catalog/docs/concepts/resource-project).
func (c *Client) CreateEntryGroup(ctx context.Context, req *datacatalogpb.CreateEntryGroupRequest, opts ...gax.CallOption) (*datacatalogpb.EntryGroup, error) {
	return c.internalClient.CreateEntryGroup(ctx, req, opts...)
}

// GetEntryGroup gets an entry group.
func (c *Client) GetEntryGroup(ctx context.Context, req *datacatalogpb.GetEntryGroupRequest, opts ...gax.CallOption) (*datacatalogpb.EntryGroup, error) {
	return c.internalClient.GetEntryGroup(ctx, req, opts...)
}

// UpdateEntryGroup updates an entry group.
//
// You must enable the Data Catalog API in the project identified by
// the entry_group.name parameter. For more information, see Data Catalog
// resource
// project (at https://cloud.google.com/data-catalog/docs/concepts/resource-project).
func (c *Client) UpdateEntryGroup(ctx context.Context, req *datacatalogpb.UpdateEntryGroupRequest, opts ...gax.CallOption) (*datacatalogpb.EntryGroup, error) {
	return c.internalClient.UpdateEntryGroup(ctx, req, opts...)
}

// DeleteEntryGroup deletes an entry group.
//
// You must enable the Data Catalog API in the project
// identified by the name parameter. For more information, see Data Catalog
// resource
// project (at https://cloud.google.com/data-catalog/docs/concepts/resource-project).
func (c *Client) DeleteEntryGroup(ctx context.Context, req *datacatalogpb.DeleteEntryGroupRequest, opts ...gax.CallOption) error {
	return c.internalClient.DeleteEntryGroup(ctx, req, opts...)
}

// ListEntryGroups lists entry groups.
func (c *Client) ListEntryGroups(ctx context.Context, req *datacatalogpb.ListEntryGroupsRequest, opts ...gax.CallOption) *EntryGroupIterator {
	return c.internalClient.ListEntryGroups(ctx, req, opts...)
}

// CreateEntry creates an entry.
//
// You can create entries only with ‘FILESET’, ‘CLUSTER’, ‘DATA_STREAM’,
// or custom types. Data Catalog automatically creates entries with other
// types during metadata ingestion from integrated systems.
//
// You must enable the Data Catalog API in the project identified by
// the parent parameter. For more information, see Data Catalog resource
// project (at https://cloud.google.com/data-catalog/docs/concepts/resource-project).
//
// An entry group can have a maximum of 100,000 entries.
func (c *Client) CreateEntry(ctx context.Context, req *datacatalogpb.CreateEntryRequest, opts ...gax.CallOption) (*datacatalogpb.Entry, error) {
	return c.internalClient.CreateEntry(ctx, req, opts...)
}

// UpdateEntry updates an existing entry.
//
// You must enable the Data Catalog API in the project identified by
// the entry.name parameter. For more information, see Data Catalog
// resource
// project (at https://cloud.google.com/data-catalog/docs/concepts/resource-project).
func (c *Client) UpdateEntry(ctx context.Context, req *datacatalogpb.UpdateEntryRequest, opts ...gax.CallOption) (*datacatalogpb.Entry, error) {
	return c.internalClient.UpdateEntry(ctx, req, opts...)
}

// DeleteEntry deletes an existing entry.
//
// You can delete only the entries created by the
// CreateEntry
// method.
//
// You must enable the Data Catalog API in the project identified by
// the name parameter. For more information, see Data Catalog
// resource
// project (at https://cloud.google.com/data-catalog/docs/concepts/resource-project).
func (c *Client) DeleteEntry(ctx context.Context, req *datacatalogpb.DeleteEntryRequest, opts ...gax.CallOption) error {
	return c.internalClient.DeleteEntry(ctx, req, opts...)
}

// GetEntry gets an entry.
func (c *Client) GetEntry(ctx context.Context, req *datacatalogpb.GetEntryRequest, opts ...gax.CallOption) (*datacatalogpb.Entry, error) {
	return c.internalClient.GetEntry(ctx, req, opts...)
}

// LookupEntry gets an entry by its target resource name.
//
// The resource name comes from the source Google Cloud Platform service.
func (c *Client) LookupEntry(ctx context.Context, req *datacatalogpb.LookupEntryRequest, opts ...gax.CallOption) (*datacatalogpb.Entry, error) {
	return c.internalClient.LookupEntry(ctx, req, opts...)
}

// ListEntries lists entries.
//
// Note: Currently, this method can list only custom entries.
// To get a list of both custom and automatically created entries, use
// SearchCatalog.
func (c *Client) ListEntries(ctx context.Context, req *datacatalogpb.ListEntriesRequest, opts ...gax.CallOption) *EntryIterator {
	return c.internalClient.ListEntries(ctx, req, opts...)
}

// ModifyEntryOverview modifies entry overview, part of the business context of an
// Entry.
//
// To call this method, you must have the datacatalog.entries.updateOverview
// IAM permission on the corresponding project.
func (c *Client) ModifyEntryOverview(ctx context.Context, req *datacatalogpb.ModifyEntryOverviewRequest, opts ...gax.CallOption) (*datacatalogpb.EntryOverview, error) {
	return c.internalClient.ModifyEntryOverview(ctx, req, opts...)
}

// ModifyEntryContacts modifies contacts, part of the business context of an
// Entry.
//
// To call this method, you must have the datacatalog.entries.updateContacts
// IAM permission on the corresponding project.
func (c *Client) ModifyEntryContacts(ctx context.Context, req *datacatalogpb.ModifyEntryContactsRequest, opts ...gax.CallOption) (*datacatalogpb.Contacts, error) {
	return c.internalClient.ModifyEntryContacts(ctx, req, opts...)
}

// CreateTagTemplate creates a tag template.
//
// You must enable the Data Catalog API in the project identified by the
// parent parameter.
// For more information, see [Data Catalog resource project]
// (https://cloud.google.com/data-catalog/docs/concepts/resource-project (at https://cloud.google.com/data-catalog/docs/concepts/resource-project)).
func (c *Client) CreateTagTemplate(ctx context.Context, req *datacatalogpb.CreateTagTemplateRequest, opts ...gax.CallOption) (*datacatalogpb.TagTemplate, error) {
	return c.internalClient.CreateTagTemplate(ctx, req, opts...)
}

// GetTagTemplate gets a tag template.
func (c *Client) GetTagTemplate(ctx context.Context, req *datacatalogpb.GetTagTemplateRequest, opts ...gax.CallOption) (*datacatalogpb.TagTemplate, error) {
	return c.internalClient.GetTagTemplate(ctx, req, opts...)
}

// UpdateTagTemplate updates a tag template.
//
// You can’t update template fields with this method. These fields are
// separate resources with their own create, update, and delete methods.
//
// You must enable the Data Catalog API in the project identified by
// the tag_template.name parameter. For more information, see Data Catalog
// resource
// project (at https://cloud.google.com/data-catalog/docs/concepts/resource-project).
func (c *Client) UpdateTagTemplate(ctx context.Context, req *datacatalogpb.UpdateTagTemplateRequest, opts ...gax.CallOption) (*datacatalogpb.TagTemplate, error) {
	return c.internalClient.UpdateTagTemplate(ctx, req, opts...)
}

// DeleteTagTemplate deletes a tag template and all tags that use it.
//
// You must enable the Data Catalog API in the project identified by
// the name parameter. For more information, see Data Catalog resource
// project (at https://cloud.google.com/data-catalog/docs/concepts/resource-project).
func (c *Client) DeleteTagTemplate(ctx context.Context, req *datacatalogpb.DeleteTagTemplateRequest, opts ...gax.CallOption) error {
	return c.internalClient.DeleteTagTemplate(ctx, req, opts...)
}

// CreateTagTemplateField creates a field in a tag template.
//
// You must enable the Data Catalog API in the project identified by
// the parent parameter. For more information, see Data Catalog resource
// project (at https://cloud.google.com/data-catalog/docs/concepts/resource-project).
func (c *Client) CreateTagTemplateField(ctx context.Context, req *datacatalogpb.CreateTagTemplateFieldRequest, opts ...gax.CallOption) (*datacatalogpb.TagTemplateField, error) {
	return c.internalClient.CreateTagTemplateField(ctx, req, opts...)
}

// UpdateTagTemplateField updates a field in a tag template.
//
// You can’t update the field type with this method.
//
// You must enable the Data Catalog API in the project
// identified by the name parameter. For more information, see Data Catalog
// resource
// project (at https://cloud.google.com/data-catalog/docs/concepts/resource-project).
func (c *Client) UpdateTagTemplateField(ctx context.Context, req *datacatalogpb.UpdateTagTemplateFieldRequest, opts ...gax.CallOption) (*datacatalogpb.TagTemplateField, error) {
	return c.internalClient.UpdateTagTemplateField(ctx, req, opts...)
}

// RenameTagTemplateField renames a field in a tag template.
//
// You must enable the Data Catalog API in the project identified by the
// name parameter. For more information, see [Data Catalog resource project]
// (https://cloud.google.com/data-catalog/docs/concepts/resource-project (at https://cloud.google.com/data-catalog/docs/concepts/resource-project)).
func (c *Client) RenameTagTemplateField(ctx context.Context, req *datacatalogpb.RenameTagTemplateFieldRequest, opts ...gax.CallOption) (*datacatalogpb.TagTemplateField, error) {
	return c.internalClient.RenameTagTemplateField(ctx, req, opts...)
}

// RenameTagTemplateFieldEnumValue renames an enum value in a tag template.
//
// Within a single enum field, enum values must be unique.
func (c *Client) RenameTagTemplateFieldEnumValue(ctx context.Context, req *datacatalogpb.RenameTagTemplateFieldEnumValueRequest, opts ...gax.CallOption) (*datacatalogpb.TagTemplateField, error) {
	return c.internalClient.RenameTagTemplateFieldEnumValue(ctx, req, opts...)
}

// DeleteTagTemplateField deletes a field in a tag template and all uses of this field from the tags
// based on this template.
//
// You must enable the Data Catalog API in the project identified by
// the name parameter. For more information, see Data Catalog resource
// project (at https://cloud.google.com/data-catalog/docs/concepts/resource-project).
func (c *Client) DeleteTagTemplateField(ctx context.Context, req *datacatalogpb.DeleteTagTemplateFieldRequest, opts ...gax.CallOption) error {
	return c.internalClient.DeleteTagTemplateField(ctx, req, opts...)
}

// CreateTag creates a tag and assigns it to:
//
//   An Entry if the method name is
//   projects.locations.entryGroups.entries.tags.create.
//
//   Or EntryGroupif the method
//   name is projects.locations.entryGroups.tags.create.
//
// Note: The project identified by the parent parameter for the [tag]
// (https://cloud.google.com/data-catalog/docs/reference/rest/v1/projects.locations.entryGroups.entries.tags/create#path-parameters (at https://cloud.google.com/data-catalog/docs/reference/rest/v1/projects.locations.entryGroups.entries.tags/create#path-parameters))
// and the [tag template]
// (https://cloud.google.com/data-catalog/docs/reference/rest/v1/projects.locations.tagTemplates/create#path-parameters (at https://cloud.google.com/data-catalog/docs/reference/rest/v1/projects.locations.tagTemplates/create#path-parameters))
// used to create the tag must be in the same organization.
func (c *Client) CreateTag(ctx context.Context, req *datacatalogpb.CreateTagRequest, opts ...gax.CallOption) (*datacatalogpb.Tag, error) {
	return c.internalClient.CreateTag(ctx, req, opts...)
}

// UpdateTag updates an existing tag.
func (c *Client) UpdateTag(ctx context.Context, req *datacatalogpb.UpdateTagRequest, opts ...gax.CallOption) (*datacatalogpb.Tag, error) {
	return c.internalClient.UpdateTag(ctx, req, opts...)
}

// DeleteTag deletes a tag.
func (c *Client) DeleteTag(ctx context.Context, req *datacatalogpb.DeleteTagRequest, opts ...gax.CallOption) error {
	return c.internalClient.DeleteTag(ctx, req, opts...)
}

// ListTags lists tags assigned to an Entry.
// The columns in the response are
// lowercased.
func (c *Client) ListTags(ctx context.Context, req *datacatalogpb.ListTagsRequest, opts ...gax.CallOption) *TagIterator {
	return c.internalClient.ListTags(ctx, req, opts...)
}

// StarEntry marks an Entry as starred by
// the current user. Starring information is private to each user.
func (c *Client) StarEntry(ctx context.Context, req *datacatalogpb.StarEntryRequest, opts ...gax.CallOption) (*datacatalogpb.StarEntryResponse, error) {
	return c.internalClient.StarEntry(ctx, req, opts...)
}

// UnstarEntry marks an Entry as NOT starred by
// the current user. Starring information is private to each user.
func (c *Client) UnstarEntry(ctx context.Context, req *datacatalogpb.UnstarEntryRequest, opts ...gax.CallOption) (*datacatalogpb.UnstarEntryResponse, error) {
	return c.internalClient.UnstarEntry(ctx, req, opts...)
}

// SetIamPolicy sets an access control policy for a resource. Replaces any existing
// policy.
//
// Supported resources are:
//
//   Tag templates
//
//   Entry groups
//
// Note: This method sets policies only within Data Catalog and can’t be
// used to manage policies in BigQuery, Pub/Sub, Dataproc Metastore, and any
// external Google Cloud Platform resources synced with the Data Catalog.
//
// To call this method, you must have the following Google IAM permissions:
//
//   datacatalog.tagTemplates.setIamPolicy to set policies on tag
//   templates.
//
//   datacatalog.entryGroups.setIamPolicy to set policies on entry groups.
func (c *Client) SetIamPolicy(ctx context.Context, req *iampb.SetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error) {
	return c.internalClient.SetIamPolicy(ctx, req, opts...)
}

// GetIamPolicy gets the access control policy for a resource.
//
// May return:
//
//   ANOT_FOUND error if the resource doesn’t exist or you don’t have the
//   permission to view it.
//
//   An empty policy if the resource exists but doesn’t have a set policy.
//
// Supported resources are:
//
//   Tag templates
//
//   Entry groups
//
// Note: This method doesn’t get policies from Google Cloud Platform
// resources ingested into Data Catalog.
//
// To call this method, you must have the following Google IAM permissions:
//
//   datacatalog.tagTemplates.getIamPolicy to get policies on tag
//   templates.
//
//   datacatalog.entryGroups.getIamPolicy to get policies on entry groups.
func (c *Client) GetIamPolicy(ctx context.Context, req *iampb.GetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error) {
	return c.internalClient.GetIamPolicy(ctx, req, opts...)
}

// TestIamPermissions gets your permissions on a resource.
//
// Returns an empty set of permissions if the resource doesn’t exist.
//
// Supported resources are:
//
//   Tag templates
//
//   Entry groups
//
// Note: This method gets policies only within Data Catalog and can’t be
// used to get policies from BigQuery, Pub/Sub, Dataproc Metastore, and any
// external Google Cloud Platform resources ingested into Data Catalog.
//
// No Google IAM permissions are required to call this method.
func (c *Client) TestIamPermissions(ctx context.Context, req *iampb.TestIamPermissionsRequest, opts ...gax.CallOption) (*iampb.TestIamPermissionsResponse, error) {
	return c.internalClient.TestIamPermissions(ctx, req, opts...)
}

// gRPCClient is a client for interacting with Google Cloud Data Catalog API over gRPC transport.
//
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type gRPCClient struct {
	// Connection pool of gRPC connections to the service.
	connPool gtransport.ConnPool

	// flag to opt out of default deadlines via GOOGLE_API_GO_EXPERIMENTAL_DISABLE_DEFAULT_DEADLINE
	disableDeadlines bool

	// Points back to the CallOptions field of the containing Client
	CallOptions **CallOptions

	// The gRPC API client.
	client datacatalogpb.DataCatalogClient

	// The x-goog-* metadata to be sent with each request.
	xGoogMetadata metadata.MD
}

// NewClient creates a new data catalog client based on gRPC.
// The returned client must be Closed when it is done being used to clean up its underlying connections.
//
// Data Catalog API service allows you to discover, understand, and manage
// your data.
func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) {
	clientOpts := defaultGRPCClientOptions()
	if newClientHook != nil {
		hookOpts, err := newClientHook(ctx, clientHookParams{})
		if err != nil {
			return nil, err
		}
		clientOpts = append(clientOpts, hookOpts...)
	}

	disableDeadlines, err := checkDisableDeadlines()
	if err != nil {
		return nil, err
	}

	connPool, err := gtransport.DialPool(ctx, append(clientOpts, opts...)...)
	if err != nil {
		return nil, err
	}
	client := Client{CallOptions: defaultCallOptions()}

	c := &gRPCClient{
		connPool:         connPool,
		disableDeadlines: disableDeadlines,
		client:           datacatalogpb.NewDataCatalogClient(connPool),
		CallOptions:      &client.CallOptions,
	}
	c.setGoogleClientInfo()

	client.internalClient = c

	return &client, nil
}

// Connection returns a connection to the API service.
//
// Deprecated.
func (c *gRPCClient) Connection() *grpc.ClientConn {
	return c.connPool.Conn()
}

// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *gRPCClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", versionGo()}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "grpc", grpc.Version)
	c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
}

// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *gRPCClient) Close() error {
	return c.connPool.Close()
}

func (c *gRPCClient) SearchCatalog(ctx context.Context, req *datacatalogpb.SearchCatalogRequest, opts ...gax.CallOption) *SearchCatalogResultIterator {
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append((*c.CallOptions).SearchCatalog[0:len((*c.CallOptions).SearchCatalog):len((*c.CallOptions).SearchCatalog)], opts...)
	it := &SearchCatalogResultIterator{}
	req = proto.Clone(req).(*datacatalogpb.SearchCatalogRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datacatalogpb.SearchCatalogResult, string, error) {
		resp := &datacatalogpb.SearchCatalogResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.client.SearchCatalog(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetResults(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *gRPCClient) CreateEntryGroup(ctx context.Context, req *datacatalogpb.CreateEntryGroupRequest, opts ...gax.CallOption) (*datacatalogpb.EntryGroup, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).CreateEntryGroup[0:len((*c.CallOptions).CreateEntryGroup):len((*c.CallOptions).CreateEntryGroup)], opts...)
	var resp *datacatalogpb.EntryGroup
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.CreateEntryGroup(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) GetEntryGroup(ctx context.Context, req *datacatalogpb.GetEntryGroupRequest, opts ...gax.CallOption) (*datacatalogpb.EntryGroup, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).GetEntryGroup[0:len((*c.CallOptions).GetEntryGroup):len((*c.CallOptions).GetEntryGroup)], opts...)
	var resp *datacatalogpb.EntryGroup
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.GetEntryGroup(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) UpdateEntryGroup(ctx context.Context, req *datacatalogpb.UpdateEntryGroupRequest, opts ...gax.CallOption) (*datacatalogpb.EntryGroup, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "entry_group.name", url.QueryEscape(req.GetEntryGroup().GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).UpdateEntryGroup[0:len((*c.CallOptions).UpdateEntryGroup):len((*c.CallOptions).UpdateEntryGroup)], opts...)
	var resp *datacatalogpb.EntryGroup
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.UpdateEntryGroup(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) DeleteEntryGroup(ctx context.Context, req *datacatalogpb.DeleteEntryGroupRequest, opts ...gax.CallOption) error {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).DeleteEntryGroup[0:len((*c.CallOptions).DeleteEntryGroup):len((*c.CallOptions).DeleteEntryGroup)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		_, err = c.client.DeleteEntryGroup(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	return err
}

func (c *gRPCClient) ListEntryGroups(ctx context.Context, req *datacatalogpb.ListEntryGroupsRequest, opts ...gax.CallOption) *EntryGroupIterator {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).ListEntryGroups[0:len((*c.CallOptions).ListEntryGroups):len((*c.CallOptions).ListEntryGroups)], opts...)
	it := &EntryGroupIterator{}
	req = proto.Clone(req).(*datacatalogpb.ListEntryGroupsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datacatalogpb.EntryGroup, string, error) {
		resp := &datacatalogpb.ListEntryGroupsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.client.ListEntryGroups(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetEntryGroups(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *gRPCClient) CreateEntry(ctx context.Context, req *datacatalogpb.CreateEntryRequest, opts ...gax.CallOption) (*datacatalogpb.Entry, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).CreateEntry[0:len((*c.CallOptions).CreateEntry):len((*c.CallOptions).CreateEntry)], opts...)
	var resp *datacatalogpb.Entry
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.CreateEntry(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) UpdateEntry(ctx context.Context, req *datacatalogpb.UpdateEntryRequest, opts ...gax.CallOption) (*datacatalogpb.Entry, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "entry.name", url.QueryEscape(req.GetEntry().GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).UpdateEntry[0:len((*c.CallOptions).UpdateEntry):len((*c.CallOptions).UpdateEntry)], opts...)
	var resp *datacatalogpb.Entry
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.UpdateEntry(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) DeleteEntry(ctx context.Context, req *datacatalogpb.DeleteEntryRequest, opts ...gax.CallOption) error {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).DeleteEntry[0:len((*c.CallOptions).DeleteEntry):len((*c.CallOptions).DeleteEntry)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		_, err = c.client.DeleteEntry(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	return err
}

func (c *gRPCClient) GetEntry(ctx context.Context, req *datacatalogpb.GetEntryRequest, opts ...gax.CallOption) (*datacatalogpb.Entry, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).GetEntry[0:len((*c.CallOptions).GetEntry):len((*c.CallOptions).GetEntry)], opts...)
	var resp *datacatalogpb.Entry
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.GetEntry(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) LookupEntry(ctx context.Context, req *datacatalogpb.LookupEntryRequest, opts ...gax.CallOption) (*datacatalogpb.Entry, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append((*c.CallOptions).LookupEntry[0:len((*c.CallOptions).LookupEntry):len((*c.CallOptions).LookupEntry)], opts...)
	var resp *datacatalogpb.Entry
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.LookupEntry(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) ListEntries(ctx context.Context, req *datacatalogpb.ListEntriesRequest, opts ...gax.CallOption) *EntryIterator {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).ListEntries[0:len((*c.CallOptions).ListEntries):len((*c.CallOptions).ListEntries)], opts...)
	it := &EntryIterator{}
	req = proto.Clone(req).(*datacatalogpb.ListEntriesRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datacatalogpb.Entry, string, error) {
		resp := &datacatalogpb.ListEntriesResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.client.ListEntries(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetEntries(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *gRPCClient) ModifyEntryOverview(ctx context.Context, req *datacatalogpb.ModifyEntryOverviewRequest, opts ...gax.CallOption) (*datacatalogpb.EntryOverview, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).ModifyEntryOverview[0:len((*c.CallOptions).ModifyEntryOverview):len((*c.CallOptions).ModifyEntryOverview)], opts...)
	var resp *datacatalogpb.EntryOverview
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.ModifyEntryOverview(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) ModifyEntryContacts(ctx context.Context, req *datacatalogpb.ModifyEntryContactsRequest, opts ...gax.CallOption) (*datacatalogpb.Contacts, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).ModifyEntryContacts[0:len((*c.CallOptions).ModifyEntryContacts):len((*c.CallOptions).ModifyEntryContacts)], opts...)
	var resp *datacatalogpb.Contacts
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.ModifyEntryContacts(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) CreateTagTemplate(ctx context.Context, req *datacatalogpb.CreateTagTemplateRequest, opts ...gax.CallOption) (*datacatalogpb.TagTemplate, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).CreateTagTemplate[0:len((*c.CallOptions).CreateTagTemplate):len((*c.CallOptions).CreateTagTemplate)], opts...)
	var resp *datacatalogpb.TagTemplate
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.CreateTagTemplate(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) GetTagTemplate(ctx context.Context, req *datacatalogpb.GetTagTemplateRequest, opts ...gax.CallOption) (*datacatalogpb.TagTemplate, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).GetTagTemplate[0:len((*c.CallOptions).GetTagTemplate):len((*c.CallOptions).GetTagTemplate)], opts...)
	var resp *datacatalogpb.TagTemplate
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.GetTagTemplate(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) UpdateTagTemplate(ctx context.Context, req *datacatalogpb.UpdateTagTemplateRequest, opts ...gax.CallOption) (*datacatalogpb.TagTemplate, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "tag_template.name", url.QueryEscape(req.GetTagTemplate().GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).UpdateTagTemplate[0:len((*c.CallOptions).UpdateTagTemplate):len((*c.CallOptions).UpdateTagTemplate)], opts...)
	var resp *datacatalogpb.TagTemplate
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.UpdateTagTemplate(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) DeleteTagTemplate(ctx context.Context, req *datacatalogpb.DeleteTagTemplateRequest, opts ...gax.CallOption) error {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).DeleteTagTemplate[0:len((*c.CallOptions).DeleteTagTemplate):len((*c.CallOptions).DeleteTagTemplate)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		_, err = c.client.DeleteTagTemplate(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	return err
}

func (c *gRPCClient) CreateTagTemplateField(ctx context.Context, req *datacatalogpb.CreateTagTemplateFieldRequest, opts ...gax.CallOption) (*datacatalogpb.TagTemplateField, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).CreateTagTemplateField[0:len((*c.CallOptions).CreateTagTemplateField):len((*c.CallOptions).CreateTagTemplateField)], opts...)
	var resp *datacatalogpb.TagTemplateField
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.CreateTagTemplateField(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) UpdateTagTemplateField(ctx context.Context, req *datacatalogpb.UpdateTagTemplateFieldRequest, opts ...gax.CallOption) (*datacatalogpb.TagTemplateField, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).UpdateTagTemplateField[0:len((*c.CallOptions).UpdateTagTemplateField):len((*c.CallOptions).UpdateTagTemplateField)], opts...)
	var resp *datacatalogpb.TagTemplateField
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.UpdateTagTemplateField(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) RenameTagTemplateField(ctx context.Context, req *datacatalogpb.RenameTagTemplateFieldRequest, opts ...gax.CallOption) (*datacatalogpb.TagTemplateField, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).RenameTagTemplateField[0:len((*c.CallOptions).RenameTagTemplateField):len((*c.CallOptions).RenameTagTemplateField)], opts...)
	var resp *datacatalogpb.TagTemplateField
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.RenameTagTemplateField(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) RenameTagTemplateFieldEnumValue(ctx context.Context, req *datacatalogpb.RenameTagTemplateFieldEnumValueRequest, opts ...gax.CallOption) (*datacatalogpb.TagTemplateField, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).RenameTagTemplateFieldEnumValue[0:len((*c.CallOptions).RenameTagTemplateFieldEnumValue):len((*c.CallOptions).RenameTagTemplateFieldEnumValue)], opts...)
	var resp *datacatalogpb.TagTemplateField
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.RenameTagTemplateFieldEnumValue(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) DeleteTagTemplateField(ctx context.Context, req *datacatalogpb.DeleteTagTemplateFieldRequest, opts ...gax.CallOption) error {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).DeleteTagTemplateField[0:len((*c.CallOptions).DeleteTagTemplateField):len((*c.CallOptions).DeleteTagTemplateField)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		_, err = c.client.DeleteTagTemplateField(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	return err
}

func (c *gRPCClient) CreateTag(ctx context.Context, req *datacatalogpb.CreateTagRequest, opts ...gax.CallOption) (*datacatalogpb.Tag, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).CreateTag[0:len((*c.CallOptions).CreateTag):len((*c.CallOptions).CreateTag)], opts...)
	var resp *datacatalogpb.Tag
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.CreateTag(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) UpdateTag(ctx context.Context, req *datacatalogpb.UpdateTagRequest, opts ...gax.CallOption) (*datacatalogpb.Tag, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "tag.name", url.QueryEscape(req.GetTag().GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).UpdateTag[0:len((*c.CallOptions).UpdateTag):len((*c.CallOptions).UpdateTag)], opts...)
	var resp *datacatalogpb.Tag
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.UpdateTag(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) DeleteTag(ctx context.Context, req *datacatalogpb.DeleteTagRequest, opts ...gax.CallOption) error {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).DeleteTag[0:len((*c.CallOptions).DeleteTag):len((*c.CallOptions).DeleteTag)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		_, err = c.client.DeleteTag(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	return err
}

func (c *gRPCClient) ListTags(ctx context.Context, req *datacatalogpb.ListTagsRequest, opts ...gax.CallOption) *TagIterator {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).ListTags[0:len((*c.CallOptions).ListTags):len((*c.CallOptions).ListTags)], opts...)
	it := &TagIterator{}
	req = proto.Clone(req).(*datacatalogpb.ListTagsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datacatalogpb.Tag, string, error) {
		resp := &datacatalogpb.ListTagsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.client.ListTags(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetTags(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *gRPCClient) StarEntry(ctx context.Context, req *datacatalogpb.StarEntryRequest, opts ...gax.CallOption) (*datacatalogpb.StarEntryResponse, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).StarEntry[0:len((*c.CallOptions).StarEntry):len((*c.CallOptions).StarEntry)], opts...)
	var resp *datacatalogpb.StarEntryResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.StarEntry(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) UnstarEntry(ctx context.Context, req *datacatalogpb.UnstarEntryRequest, opts ...gax.CallOption) (*datacatalogpb.UnstarEntryResponse, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).UnstarEntry[0:len((*c.CallOptions).UnstarEntry):len((*c.CallOptions).UnstarEntry)], opts...)
	var resp *datacatalogpb.UnstarEntryResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.UnstarEntry(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) SetIamPolicy(ctx context.Context, req *iampb.SetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "resource", url.QueryEscape(req.GetResource())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).SetIamPolicy[0:len((*c.CallOptions).SetIamPolicy):len((*c.CallOptions).SetIamPolicy)], opts...)
	var resp *iampb.Policy
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.SetIamPolicy(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) GetIamPolicy(ctx context.Context, req *iampb.GetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "resource", url.QueryEscape(req.GetResource())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).GetIamPolicy[0:len((*c.CallOptions).GetIamPolicy):len((*c.CallOptions).GetIamPolicy)], opts...)
	var resp *iampb.Policy
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.GetIamPolicy(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) TestIamPermissions(ctx context.Context, req *iampb.TestIamPermissionsRequest, opts ...gax.CallOption) (*iampb.TestIamPermissionsResponse, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "resource", url.QueryEscape(req.GetResource())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).TestIamPermissions[0:len((*c.CallOptions).TestIamPermissions):len((*c.CallOptions).TestIamPermissions)], opts...)
	var resp *iampb.TestIamPermissionsResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.TestIamPermissions(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

// EntryGroupIterator manages a stream of *datacatalogpb.EntryGroup.
type EntryGroupIterator struct {
	items    []*datacatalogpb.EntryGroup
	pageInfo *iterator.PageInfo
	nextFunc func() error

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []*datacatalogpb.EntryGroup, nextPageToken string, err error)
}

// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
func (it *EntryGroupIterator) PageInfo() *iterator.PageInfo {
	return it.pageInfo
}

// Next returns the next result. Its second return value is iterator.Done if there are no more
// results. Once Next returns Done, all subsequent calls will return Done.
func (it *EntryGroupIterator) Next() (*datacatalogpb.EntryGroup, error) {
	var item *datacatalogpb.EntryGroup
	if err := it.nextFunc(); err != nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

func (it *EntryGroupIterator) bufLen() int {
	return len(it.items)
}

func (it *EntryGroupIterator) takeBuf() interface{} {
	b := it.items
	it.items = nil
	return b
}

// EntryIterator manages a stream of *datacatalogpb.Entry.
type EntryIterator struct {
	items    []*datacatalogpb.Entry
	pageInfo *iterator.PageInfo
	nextFunc func() error

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []*datacatalogpb.Entry, nextPageToken string, err error)
}

// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
func (it *EntryIterator) PageInfo() *iterator.PageInfo {
	return it.pageInfo
}

// Next returns the next result. Its second return value is iterator.Done if there are no more
// results. Once Next returns Done, all subsequent calls will return Done.
func (it *EntryIterator) Next() (*datacatalogpb.Entry, error) {
	var item *datacatalogpb.Entry
	if err := it.nextFunc(); err != nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

func (it *EntryIterator) bufLen() int {
	return len(it.items)
}

func (it *EntryIterator) takeBuf() interface{} {
	b := it.items
	it.items = nil
	return b
}

// SearchCatalogResultIterator manages a stream of *datacatalogpb.SearchCatalogResult.
type SearchCatalogResultIterator struct {
	items    []*datacatalogpb.SearchCatalogResult
	pageInfo *iterator.PageInfo
	nextFunc func() error

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []*datacatalogpb.SearchCatalogResult, nextPageToken string, err error)
}

// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
func (it *SearchCatalogResultIterator) PageInfo() *iterator.PageInfo {
	return it.pageInfo
}

// Next returns the next result. Its second return value is iterator.Done if there are no more
// results. Once Next returns Done, all subsequent calls will return Done.
func (it *SearchCatalogResultIterator) Next() (*datacatalogpb.SearchCatalogResult, error) {
	var item *datacatalogpb.SearchCatalogResult
	if err := it.nextFunc(); err != nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

func (it *SearchCatalogResultIterator) bufLen() int {
	return len(it.items)
}

func (it *SearchCatalogResultIterator) takeBuf() interface{} {
	b := it.items
	it.items = nil
	return b
}

// TagIterator manages a stream of *datacatalogpb.Tag.
type TagIterator struct {
	items    []*datacatalogpb.Tag
	pageInfo *iterator.PageInfo
	nextFunc func() error

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []*datacatalogpb.Tag, nextPageToken string, err error)
}

// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
func (it *TagIterator) PageInfo() *iterator.PageInfo {
	return it.pageInfo
}

// Next returns the next result. Its second return value is iterator.Done if there are no more
// results. Once Next returns Done, all subsequent calls will return Done.
func (it *TagIterator) Next() (*datacatalogpb.Tag, error) {
	var item *datacatalogpb.Tag
	if err := it.nextFunc(); err != nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

func (it *TagIterator) bufLen() int {
	return len(it.items)
}

func (it *TagIterator) takeBuf() interface{} {
	b := it.items
	it.items = nil
	return b
}