area120/tables/apiv1alpha1/tables_client.go - gocloud - Git at Google

 // Copyright 2020 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 tables

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

 	"github.com/golang/protobuf/proto"
 	gax "github.com/googleapis/gax-go/v2"
 	"google.golang.org/api/iterator"
 	"google.golang.org/api/option"
 	gtransport "google.golang.org/api/transport/grpc"
 	tablespb "google.golang.org/genproto/googleapis/area120/tables/v1alpha1"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/metadata"
 )

 var newClientHook clientHook

 // CallOptions contains the retry settings for each method of Client.
 type CallOptions struct {
 	GetTable        []gax.CallOption
 	ListTables      []gax.CallOption
 	GetRow          []gax.CallOption
 	ListRows        []gax.CallOption
 	CreateRow       []gax.CallOption
 	BatchCreateRows []gax.CallOption
 	UpdateRow       []gax.CallOption
 	BatchUpdateRows []gax.CallOption
 	DeleteRow       []gax.CallOption
 }

 func defaultClientOptions() []option.ClientOption {
 	return []option.ClientOption{
 		option.WithEndpoint("area120tables.googleapis.com:443"),
 		option.WithGRPCDialOption(grpc.WithDisableServiceConfig()),
 		option.WithScopes(DefaultAuthScopes()...),
 		option.WithGRPCDialOption(grpc.WithDefaultCallOptions(
 			grpc.MaxCallRecvMsgSize(math.MaxInt32))),
 	}
 }

 func defaultCallOptions() *CallOptions {
 	return &CallOptions{
 		GetTable:        []gax.CallOption{},
 		ListTables:      []gax.CallOption{},
 		GetRow:          []gax.CallOption{},
 		ListRows:        []gax.CallOption{},
 		CreateRow:       []gax.CallOption{},
 		BatchCreateRows: []gax.CallOption{},
 		UpdateRow:       []gax.CallOption{},
 		BatchUpdateRows: []gax.CallOption{},
 		DeleteRow:       []gax.CallOption{},
 	}
 }

 // Client is a client for interacting with .
 //
 // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
 type Client 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

 	// The gRPC API client.
 	client tablespb.TablesServiceClient

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

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

 // NewClient creates a new tables service client.
 //
 // The Tables Service provides an API for reading and updating tables.
 // It defines the following resource model:
 //
 //   The API has a collection of [Table][google.area120.tables.v1alpha1.Table]
 //   resources, named tables/*
 //
 //   Each Table has a collection of [Row][google.area120.tables.v1alpha1.Row]
 //   resources, named tables/*/rows/*
 func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) {
 	clientOpts := defaultClientOptions()

 	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
 	}
 	c := &Client{
 		connPool:         connPool,
 		disableDeadlines: disableDeadlines,
 		CallOptions:      defaultCallOptions(),

 		client: tablespb.NewTablesServiceClient(connPool),
 	}
 	c.setGoogleClientInfo()

 	return c, nil
 }

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

 // 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.connPool.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) {
 	kv := append([]string{"gl-go", versionGo()}, keyval...)
 	kv = append(kv, "gapic", versionClient, "gax", gax.Version, "grpc", grpc.Version)
 	c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
 }

 // GetTable gets a table. Returns NOT_FOUND if the table does not exist.
 func (c *Client) GetTable(ctx context.Context, req *tablespb.GetTableRequest, opts ...gax.CallOption) (*tablespb.Table, 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.GetTable[0:len(c.CallOptions.GetTable):len(c.CallOptions.GetTable)], opts...)
 	var resp *tablespb.Table
 	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 		var err error
 		resp, err = c.client.GetTable(ctx, req, settings.GRPC...)
 		return err
 	}, opts...)
 	if err != nil {
 		return nil, err
 	}
 	return resp, nil
 }

 // ListTables lists tables for the user.
 func (c *Client) ListTables(ctx context.Context, req *tablespb.ListTablesRequest, opts ...gax.CallOption) *TableIterator {
 	ctx = insertMetadata(ctx, c.xGoogMetadata)
 	opts = append(c.CallOptions.ListTables[0:len(c.CallOptions.ListTables):len(c.CallOptions.ListTables)], opts...)
 	it := &TableIterator{}
 	req = proto.Clone(req).(*tablespb.ListTablesRequest)
 	it.InternalFetch = func(pageSize int, pageToken string) ([]*tablespb.Table, string, error) {
 		var resp *tablespb.ListTablesResponse
 		req.PageToken = pageToken
 		if pageSize > math.MaxInt32 {
 			req.PageSize = math.MaxInt32
 		} else {
 			req.PageSize = int32(pageSize)
 		}
 		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 			var err error
 			resp, err = c.client.ListTables(ctx, req, settings.GRPC...)
 			return err
 		}, opts...)
 		if err != nil {
 			return nil, "", err
 		}

 		it.Response = resp
 		return resp.GetTables(), 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
 }

 // GetRow gets a row. Returns NOT_FOUND if the row does not exist in the table.
 func (c *Client) GetRow(ctx context.Context, req *tablespb.GetRowRequest, opts ...gax.CallOption) (*tablespb.Row, 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.GetRow[0:len(c.CallOptions.GetRow):len(c.CallOptions.GetRow)], opts...)
 	var resp *tablespb.Row
 	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 		var err error
 		resp, err = c.client.GetRow(ctx, req, settings.GRPC...)
 		return err
 	}, opts...)
 	if err != nil {
 		return nil, err
 	}
 	return resp, nil
 }

 // ListRows lists rows in a table. Returns NOT_FOUND if the table does not exist.
 func (c *Client) ListRows(ctx context.Context, req *tablespb.ListRowsRequest, opts ...gax.CallOption) *RowIterator {
 	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.ListRows[0:len(c.CallOptions.ListRows):len(c.CallOptions.ListRows)], opts...)
 	it := &RowIterator{}
 	req = proto.Clone(req).(*tablespb.ListRowsRequest)
 	it.InternalFetch = func(pageSize int, pageToken string) ([]*tablespb.Row, string, error) {
 		var resp *tablespb.ListRowsResponse
 		req.PageToken = pageToken
 		if pageSize > math.MaxInt32 {
 			req.PageSize = math.MaxInt32
 		} else {
 			req.PageSize = int32(pageSize)
 		}
 		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 			var err error
 			resp, err = c.client.ListRows(ctx, req, settings.GRPC...)
 			return err
 		}, opts...)
 		if err != nil {
 			return nil, "", err
 		}

 		it.Response = resp
 		return resp.GetRows(), 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
 }

 // CreateRow creates a row.
 func (c *Client) CreateRow(ctx context.Context, req *tablespb.CreateRowRequest, opts ...gax.CallOption) (*tablespb.Row, 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.CreateRow[0:len(c.CallOptions.CreateRow):len(c.CallOptions.CreateRow)], opts...)
 	var resp *tablespb.Row
 	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 		var err error
 		resp, err = c.client.CreateRow(ctx, req, settings.GRPC...)
 		return err
 	}, opts...)
 	if err != nil {
 		return nil, err
 	}
 	return resp, nil
 }

 // BatchCreateRows creates multiple rows.
 func (c *Client) BatchCreateRows(ctx context.Context, req *tablespb.BatchCreateRowsRequest, opts ...gax.CallOption) (*tablespb.BatchCreateRowsResponse, 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.BatchCreateRows[0:len(c.CallOptions.BatchCreateRows):len(c.CallOptions.BatchCreateRows)], opts...)
 	var resp *tablespb.BatchCreateRowsResponse
 	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 		var err error
 		resp, err = c.client.BatchCreateRows(ctx, req, settings.GRPC...)
 		return err
 	}, opts...)
 	if err != nil {
 		return nil, err
 	}
 	return resp, nil
 }

 // UpdateRow updates a row.
 func (c *Client) UpdateRow(ctx context.Context, req *tablespb.UpdateRowRequest, opts ...gax.CallOption) (*tablespb.Row, 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", "row.name", url.QueryEscape(req.GetRow().GetName())))
 	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
 	opts = append(c.CallOptions.UpdateRow[0:len(c.CallOptions.UpdateRow):len(c.CallOptions.UpdateRow)], opts...)
 	var resp *tablespb.Row
 	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 		var err error
 		resp, err = c.client.UpdateRow(ctx, req, settings.GRPC...)
 		return err
 	}, opts...)
 	if err != nil {
 		return nil, err
 	}
 	return resp, nil
 }

 // BatchUpdateRows updates multiple rows.
 func (c *Client) BatchUpdateRows(ctx context.Context, req *tablespb.BatchUpdateRowsRequest, opts ...gax.CallOption) (*tablespb.BatchUpdateRowsResponse, 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.BatchUpdateRows[0:len(c.CallOptions.BatchUpdateRows):len(c.CallOptions.BatchUpdateRows)], opts...)
 	var resp *tablespb.BatchUpdateRowsResponse
 	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 		var err error
 		resp, err = c.client.BatchUpdateRows(ctx, req, settings.GRPC...)
 		return err
 	}, opts...)
 	if err != nil {
 		return nil, err
 	}
 	return resp, nil
 }

 // DeleteRow deletes a row.
 func (c *Client) DeleteRow(ctx context.Context, req *tablespb.DeleteRowRequest, 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.DeleteRow[0:len(c.CallOptions.DeleteRow):len(c.CallOptions.DeleteRow)], opts...)
 	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 		var err error
 		_, err = c.client.DeleteRow(ctx, req, settings.GRPC...)
 		return err
 	}, opts...)
 	return err
 }

 // RowIterator manages a stream of *tablespb.Row.
 type RowIterator struct {
 	items    []*tablespb.Row
 	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 []*tablespb.Row, nextPageToken string, err error)
 }

 // PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
 func (it *RowIterator) 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 *RowIterator) Next() (*tablespb.Row, error) {
 	var item *tablespb.Row
 	if err := it.nextFunc(); err != nil {
 		return item, err
 	}
 	item = it.items[0]
 	it.items = it.items[1:]
 	return item, nil
 }

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

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

 // TableIterator manages a stream of *tablespb.Table.
 type TableIterator struct {
 	items    []*tablespb.Table
 	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 []*tablespb.Table, nextPageToken string, err error)
 }

 // PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
 func (it *TableIterator) 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 *TableIterator) Next() (*tablespb.Table, error) {
 	var item *tablespb.Table
 	if err := it.nextFunc(); err != nil {
 		return item, err
 	}
 	item = it.items[0]
 	it.items = it.items[1:]
 	return item, nil
 }

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

 func (it *TableIterator) takeBuf() interface{} {
 	b := it.items
 	it.items = nil
 	return b
 }
	// Copyright 2020 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 tables

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

	"github.com/golang/protobuf/proto"
	gax "github.com/googleapis/gax-go/v2"
	"google.golang.org/api/iterator"
	"google.golang.org/api/option"
	gtransport "google.golang.org/api/transport/grpc"
	tablespb "google.golang.org/genproto/googleapis/area120/tables/v1alpha1"
	"google.golang.org/grpc"
	"google.golang.org/grpc/metadata"
	)

	var newClientHook clientHook

	// CallOptions contains the retry settings for each method of Client.
	type CallOptions struct {
	GetTable []gax.CallOption
	ListTables []gax.CallOption
	GetRow []gax.CallOption
	ListRows []gax.CallOption
	CreateRow []gax.CallOption
	BatchCreateRows []gax.CallOption
	UpdateRow []gax.CallOption
	BatchUpdateRows []gax.CallOption
	DeleteRow []gax.CallOption
	}

	func defaultClientOptions() []option.ClientOption {
	return []option.ClientOption{
	option.WithEndpoint("area120tables.googleapis.com:443"),
	option.WithGRPCDialOption(grpc.WithDisableServiceConfig()),
	option.WithScopes(DefaultAuthScopes()...),
	option.WithGRPCDialOption(grpc.WithDefaultCallOptions(
	grpc.MaxCallRecvMsgSize(math.MaxInt32))),
	}
	}

	func defaultCallOptions() *CallOptions {
	return &CallOptions{
	GetTable: []gax.CallOption{},
	ListTables: []gax.CallOption{},
	GetRow: []gax.CallOption{},
	ListRows: []gax.CallOption{},
	CreateRow: []gax.CallOption{},
	BatchCreateRows: []gax.CallOption{},
	UpdateRow: []gax.CallOption{},
	BatchUpdateRows: []gax.CallOption{},
	DeleteRow: []gax.CallOption{},
	}
	}

	// Client is a client for interacting with .
	//
	// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
	type Client 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

	// The gRPC API client.
	client tablespb.TablesServiceClient

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

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

	// NewClient creates a new tables service client.
	//
	// The Tables Service provides an API for reading and updating tables.
	// It defines the following resource model:
	//
	// The API has a collection of [Table][google.area120.tables.v1alpha1.Table]
	// resources, named tables/*
	//
	// Each Table has a collection of [Row][google.area120.tables.v1alpha1.Row]
	// resources, named tables//rows/
	func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) {
	clientOpts := defaultClientOptions()

	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
	}
	c := &Client{
	connPool: connPool,
	disableDeadlines: disableDeadlines,
	CallOptions: defaultCallOptions(),

	client: tablespb.NewTablesServiceClient(connPool),
	}
	c.setGoogleClientInfo()

	return c, nil
	}

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

	// 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.connPool.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) {
	kv := append([]string{"gl-go", versionGo()}, keyval...)
	kv = append(kv, "gapic", versionClient, "gax", gax.Version, "grpc", grpc.Version)
	c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
	}

	// GetTable gets a table. Returns NOT_FOUND if the table does not exist.
	func (c Client) GetTable(ctx context.Context, req tablespb.GetTableRequest, opts ...gax.CallOption) (*tablespb.Table, 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.GetTable[0:len(c.CallOptions.GetTable):len(c.CallOptions.GetTable)], opts...)
	var resp *tablespb.Table
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	var err error
	resp, err = c.client.GetTable(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	if err != nil {
	return nil, err
	}
	return resp, nil
	}

	// ListTables lists tables for the user.
	func (c Client) ListTables(ctx context.Context, req tablespb.ListTablesRequest, opts ...gax.CallOption) *TableIterator {
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append(c.CallOptions.ListTables[0:len(c.CallOptions.ListTables):len(c.CallOptions.ListTables)], opts...)
	it := &TableIterator{}
	req = proto.Clone(req).(*tablespb.ListTablesRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*tablespb.Table, string, error) {
	var resp *tablespb.ListTablesResponse
	req.PageToken = pageToken
	if pageSize > math.MaxInt32 {
	req.PageSize = math.MaxInt32
	} else {
	req.PageSize = int32(pageSize)
	}
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	var err error
	resp, err = c.client.ListTables(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	if err != nil {
	return nil, "", err
	}

	it.Response = resp
	return resp.GetTables(), 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
	}

	// GetRow gets a row. Returns NOT_FOUND if the row does not exist in the table.
	func (c Client) GetRow(ctx context.Context, req tablespb.GetRowRequest, opts ...gax.CallOption) (*tablespb.Row, 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.GetRow[0:len(c.CallOptions.GetRow):len(c.CallOptions.GetRow)], opts...)
	var resp *tablespb.Row
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	var err error
	resp, err = c.client.GetRow(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	if err != nil {
	return nil, err
	}
	return resp, nil
	}

	// ListRows lists rows in a table. Returns NOT_FOUND if the table does not exist.
	func (c Client) ListRows(ctx context.Context, req tablespb.ListRowsRequest, opts ...gax.CallOption) *RowIterator {
	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.ListRows[0:len(c.CallOptions.ListRows):len(c.CallOptions.ListRows)], opts...)
	it := &RowIterator{}
	req = proto.Clone(req).(*tablespb.ListRowsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*tablespb.Row, string, error) {
	var resp *tablespb.ListRowsResponse
	req.PageToken = pageToken
	if pageSize > math.MaxInt32 {
	req.PageSize = math.MaxInt32
	} else {
	req.PageSize = int32(pageSize)
	}
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	var err error
	resp, err = c.client.ListRows(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	if err != nil {
	return nil, "", err
	}

	it.Response = resp
	return resp.GetRows(), 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
	}

	// CreateRow creates a row.
	func (c Client) CreateRow(ctx context.Context, req tablespb.CreateRowRequest, opts ...gax.CallOption) (*tablespb.Row, 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.CreateRow[0:len(c.CallOptions.CreateRow):len(c.CallOptions.CreateRow)], opts...)
	var resp *tablespb.Row
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	var err error
	resp, err = c.client.CreateRow(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	if err != nil {
	return nil, err
	}
	return resp, nil
	}

	// BatchCreateRows creates multiple rows.
	func (c Client) BatchCreateRows(ctx context.Context, req tablespb.BatchCreateRowsRequest, opts ...gax.CallOption) (*tablespb.BatchCreateRowsResponse, 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.BatchCreateRows[0:len(c.CallOptions.BatchCreateRows):len(c.CallOptions.BatchCreateRows)], opts...)
	var resp *tablespb.BatchCreateRowsResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	var err error
	resp, err = c.client.BatchCreateRows(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	if err != nil {
	return nil, err
	}
	return resp, nil
	}

	// UpdateRow updates a row.
	func (c Client) UpdateRow(ctx context.Context, req tablespb.UpdateRowRequest, opts ...gax.CallOption) (*tablespb.Row, 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", "row.name", url.QueryEscape(req.GetRow().GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append(c.CallOptions.UpdateRow[0:len(c.CallOptions.UpdateRow):len(c.CallOptions.UpdateRow)], opts...)
	var resp *tablespb.Row
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	var err error
	resp, err = c.client.UpdateRow(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	if err != nil {
	return nil, err
	}
	return resp, nil
	}

	// BatchUpdateRows updates multiple rows.
	func (c Client) BatchUpdateRows(ctx context.Context, req tablespb.BatchUpdateRowsRequest, opts ...gax.CallOption) (*tablespb.BatchUpdateRowsResponse, 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.BatchUpdateRows[0:len(c.CallOptions.BatchUpdateRows):len(c.CallOptions.BatchUpdateRows)], opts...)
	var resp *tablespb.BatchUpdateRowsResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	var err error
	resp, err = c.client.BatchUpdateRows(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	if err != nil {
	return nil, err
	}
	return resp, nil
	}

	// DeleteRow deletes a row.
	func (c Client) DeleteRow(ctx context.Context, req tablespb.DeleteRowRequest, 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.DeleteRow[0:len(c.CallOptions.DeleteRow):len(c.CallOptions.DeleteRow)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	var err error
	_, err = c.client.DeleteRow(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	return err
	}

	// RowIterator manages a stream of *tablespb.Row.
	type RowIterator struct {
	items []*tablespb.Row
	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 []*tablespb.Row, nextPageToken string, err error)
	}

	// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
	func (it RowIterator) 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 RowIterator) Next() (tablespb.Row, error) {
	var item *tablespb.Row
	if err := it.nextFunc(); err != nil {
	return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
	}

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

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

	// TableIterator manages a stream of *tablespb.Table.
	type TableIterator struct {
	items []*tablespb.Table
	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 []*tablespb.Table, nextPageToken string, err error)
	}

	// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
	func (it TableIterator) 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 TableIterator) Next() (tablespb.Table, error) {
	var item *tablespb.Table
	if err := it.nextFunc(); err != nil {
	return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
	}

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

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