support/apiv2/comment_client.go - gocloud - Git at Google

 // Copyright 2023 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 support

 import (
 	"bytes"
 	"context"
 	"fmt"
 	"io"
 	"math"
 	"net/http"
 	"net/url"
 	"time"

 	supportpb "cloud.google.com/go/support/apiv2/supportpb"
 	gax "github.com/googleapis/gax-go/v2"
 	"google.golang.org/api/googleapi"
 	"google.golang.org/api/iterator"
 	"google.golang.org/api/option"
 	"google.golang.org/api/option/internaloption"
 	gtransport "google.golang.org/api/transport/grpc"
 	httptransport "google.golang.org/api/transport/http"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/protobuf/encoding/protojson"
 	"google.golang.org/protobuf/proto"
 )

 var newCommentClientHook clientHook

 // CommentCallOptions contains the retry settings for each method of CommentClient.
 type CommentCallOptions struct {
 	ListComments  []gax.CallOption
 	CreateComment []gax.CallOption
 }

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

 func defaultCommentCallOptions() *CommentCallOptions {
 	return &CommentCallOptions{
 		ListComments: []gax.CallOption{
 			gax.WithTimeout(60000 * time.Millisecond),
 			gax.WithRetry(func() gax.Retryer {
 				return gax.OnCodes([]codes.Code{
 					codes.Unavailable,
 				}, gax.Backoff{
 					Initial:    1000 * time.Millisecond,
 					Max:        10000 * time.Millisecond,
 					Multiplier: 1.30,
 				})
 			}),
 		},
 		CreateComment: []gax.CallOption{
 			gax.WithTimeout(60000 * time.Millisecond),
 		},
 	}
 }

 func defaultCommentRESTCallOptions() *CommentCallOptions {
 	return &CommentCallOptions{
 		ListComments: []gax.CallOption{
 			gax.WithTimeout(60000 * time.Millisecond),
 			gax.WithRetry(func() gax.Retryer {
 				return gax.OnHTTPCodes(gax.Backoff{
 					Initial:    1000 * time.Millisecond,
 					Max:        10000 * time.Millisecond,
 					Multiplier: 1.30,
 				},
 					http.StatusServiceUnavailable)
 			}),
 		},
 		CreateComment: []gax.CallOption{
 			gax.WithTimeout(60000 * time.Millisecond),
 		},
 	}
 }

 // internalCommentClient is an interface that defines the methods available from Google Cloud Support API.
 type internalCommentClient interface {
 	Close() error
 	setGoogleClientInfo(...string)
 	Connection() *grpc.ClientConn
 	ListComments(context.Context, *supportpb.ListCommentsRequest, ...gax.CallOption) *CommentIterator
 	CreateComment(context.Context, *supportpb.CreateCommentRequest, ...gax.CallOption) (*supportpb.Comment, error)
 }

 // CommentClient is a client for interacting with Google Cloud Support API.
 // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
 //
 // A service to manage comments on cases.
 type CommentClient struct {
 	// The internal transport-dependent client.
 	internalClient internalCommentClient

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

 // 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 *CommentClient) 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 *CommentClient) setGoogleClientInfo(keyval ...string) {
 	c.internalClient.setGoogleClientInfo(keyval...)
 }

 // Connection returns a connection to the API service.
 //
 // Deprecated: Connections are now pooled so this method does not always
 // return the same resource.
 func (c *CommentClient) Connection() *grpc.ClientConn {
 	return c.internalClient.Connection()
 }

 // ListComments retrieve all Comments associated with the Case object.
 func (c *CommentClient) ListComments(ctx context.Context, req *supportpb.ListCommentsRequest, opts ...gax.CallOption) *CommentIterator {
 	return c.internalClient.ListComments(ctx, req, opts...)
 }

 // CreateComment add a new comment to the specified Case.
 // The comment object must have the following fields set: body.
 func (c *CommentClient) CreateComment(ctx context.Context, req *supportpb.CreateCommentRequest, opts ...gax.CallOption) (*supportpb.Comment, error) {
 	return c.internalClient.CreateComment(ctx, req, opts...)
 }

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

 	// Points back to the CallOptions field of the containing CommentClient
 	CallOptions **CommentCallOptions

 	// The gRPC API client.
 	commentClient supportpb.CommentServiceClient

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

 // NewCommentClient creates a new comment service client based on gRPC.
 // The returned client must be Closed when it is done being used to clean up its underlying connections.
 //
 // A service to manage comments on cases.
 func NewCommentClient(ctx context.Context, opts ...option.ClientOption) (*CommentClient, error) {
 	clientOpts := defaultCommentGRPCClientOptions()
 	if newCommentClientHook != nil {
 		hookOpts, err := newCommentClientHook(ctx, clientHookParams{})
 		if err != nil {
 			return nil, err
 		}
 		clientOpts = append(clientOpts, hookOpts...)
 	}

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

 	c := &commentGRPCClient{
 		connPool:      connPool,
 		commentClient: supportpb.NewCommentServiceClient(connPool),
 		CallOptions:   &client.CallOptions,
 	}
 	c.setGoogleClientInfo()

 	client.internalClient = c

 	return &client, nil
 }

 // Connection returns a connection to the API service.
 //
 // Deprecated: Connections are now pooled so this method does not always
 // return the same resource.
 func (c *commentGRPCClient) 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 *commentGRPCClient) setGoogleClientInfo(keyval ...string) {
 	kv := append([]string{"gl-go", gax.GoVersion}, 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 *commentGRPCClient) Close() error {
 	return c.connPool.Close()
 }

 // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
 type commentRESTClient struct {
 	// The http endpoint to connect to.
 	endpoint string

 	// The http client.
 	httpClient *http.Client

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

 	// Points back to the CallOptions field of the containing CommentClient
 	CallOptions **CommentCallOptions
 }

 // NewCommentRESTClient creates a new comment service rest client.
 //
 // A service to manage comments on cases.
 func NewCommentRESTClient(ctx context.Context, opts ...option.ClientOption) (*CommentClient, error) {
 	clientOpts := append(defaultCommentRESTClientOptions(), opts...)
 	httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
 	if err != nil {
 		return nil, err
 	}

 	callOpts := defaultCommentRESTCallOptions()
 	c := &commentRESTClient{
 		endpoint:    endpoint,
 		httpClient:  httpClient,
 		CallOptions: &callOpts,
 	}
 	c.setGoogleClientInfo()

 	return &CommentClient{internalClient: c, CallOptions: callOpts}, nil
 }

 func defaultCommentRESTClientOptions() []option.ClientOption {
 	return []option.ClientOption{
 		internaloption.WithDefaultEndpoint("https://cloudsupport.googleapis.com"),
 		internaloption.WithDefaultMTLSEndpoint("https://cloudsupport.mtls.googleapis.com"),
 		internaloption.WithDefaultAudience("https://cloudsupport.googleapis.com/"),
 		internaloption.WithDefaultScopes(DefaultAuthScopes()...),
 	}
 }

 // 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 *commentRESTClient) setGoogleClientInfo(keyval ...string) {
 	kv := append([]string{"gl-go", gax.GoVersion}, keyval...)
 	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "rest", "UNKNOWN")
 	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 *commentRESTClient) Close() error {
 	// Replace httpClient with nil to force cleanup.
 	c.httpClient = nil
 	return nil
 }

 // Connection returns a connection to the API service.
 //
 // Deprecated: This method always returns nil.
 func (c *commentRESTClient) Connection() *grpc.ClientConn {
 	return nil
 }
 func (c *commentGRPCClient) ListComments(ctx context.Context, req *supportpb.ListCommentsRequest, opts ...gax.CallOption) *CommentIterator {
 	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).ListComments[0:len((*c.CallOptions).ListComments):len((*c.CallOptions).ListComments)], opts...)
 	it := &CommentIterator{}
 	req = proto.Clone(req).(*supportpb.ListCommentsRequest)
 	it.InternalFetch = func(pageSize int, pageToken string) ([]*supportpb.Comment, string, error) {
 		resp := &supportpb.ListCommentsResponse{}
 		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.commentClient.ListComments(ctx, req, settings.GRPC...)
 			return err
 		}, opts...)
 		if err != nil {
 			return nil, "", err
 		}

 		it.Response = resp
 		return resp.GetComments(), 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 *commentGRPCClient) CreateComment(ctx context.Context, req *supportpb.CreateCommentRequest, opts ...gax.CallOption) (*supportpb.Comment, error) {
 	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).CreateComment[0:len((*c.CallOptions).CreateComment):len((*c.CallOptions).CreateComment)], opts...)
 	var resp *supportpb.Comment
 	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 		var err error
 		resp, err = c.commentClient.CreateComment(ctx, req, settings.GRPC...)
 		return err
 	}, opts...)
 	if err != nil {
 		return nil, err
 	}
 	return resp, nil
 }

 // ListComments retrieve all Comments associated with the Case object.
 func (c *commentRESTClient) ListComments(ctx context.Context, req *supportpb.ListCommentsRequest, opts ...gax.CallOption) *CommentIterator {
 	it := &CommentIterator{}
 	req = proto.Clone(req).(*supportpb.ListCommentsRequest)
 	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
 	it.InternalFetch = func(pageSize int, pageToken string) ([]*supportpb.Comment, string, error) {
 		resp := &supportpb.ListCommentsResponse{}
 		if pageToken != "" {
 			req.PageToken = pageToken
 		}
 		if pageSize > math.MaxInt32 {
 			req.PageSize = math.MaxInt32
 		} else if pageSize != 0 {
 			req.PageSize = int32(pageSize)
 		}
 		baseUrl, err := url.Parse(c.endpoint)
 		if err != nil {
 			return nil, "", err
 		}
 		baseUrl.Path += fmt.Sprintf("/v2/%v/comments", req.GetParent())

 		params := url.Values{}
 		params.Add("$alt", "json;enum-encoding=int")
 		if req.GetPageSize() != 0 {
 			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
 		}
 		if req.GetPageToken() != "" {
 			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
 		}

 		baseUrl.RawQuery = params.Encode()

 		// Build HTTP headers from client and context metadata.
 		headers := buildHeaders(ctx, c.xGoogMetadata, metadata.Pairs("Content-Type", "application/json"))
 		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 			if settings.Path != "" {
 				baseUrl.Path = settings.Path
 			}
 			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
 			if err != nil {
 				return err
 			}
 			httpReq.Header = headers

 			httpRsp, err := c.httpClient.Do(httpReq)
 			if err != nil {
 				return err
 			}
 			defer httpRsp.Body.Close()

 			if err = googleapi.CheckResponse(httpRsp); err != nil {
 				return err
 			}

 			buf, err := io.ReadAll(httpRsp.Body)
 			if err != nil {
 				return err
 			}

 			if err := unm.Unmarshal(buf, resp); err != nil {
 				return err
 			}

 			return nil
 		}, opts...)
 		if e != nil {
 			return nil, "", e
 		}
 		it.Response = resp
 		return resp.GetComments(), 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
 }

 // CreateComment add a new comment to the specified Case.
 // The comment object must have the following fields set: body.
 func (c *commentRESTClient) CreateComment(ctx context.Context, req *supportpb.CreateCommentRequest, opts ...gax.CallOption) (*supportpb.Comment, error) {
 	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
 	body := req.GetComment()
 	jsonReq, err := m.Marshal(body)
 	if err != nil {
 		return nil, err
 	}

 	baseUrl, err := url.Parse(c.endpoint)
 	if err != nil {
 		return nil, err
 	}
 	baseUrl.Path += fmt.Sprintf("/v2/%v/comments", req.GetParent())

 	params := url.Values{}
 	params.Add("$alt", "json;enum-encoding=int")

 	baseUrl.RawQuery = params.Encode()

 	// Build HTTP headers from client and context metadata.
 	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

 	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
 	opts = append((*c.CallOptions).CreateComment[0:len((*c.CallOptions).CreateComment):len((*c.CallOptions).CreateComment)], opts...)
 	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
 	resp := &supportpb.Comment{}
 	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 		if settings.Path != "" {
 			baseUrl.Path = settings.Path
 		}
 		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
 		if err != nil {
 			return err
 		}
 		httpReq = httpReq.WithContext(ctx)
 		httpReq.Header = headers

 		httpRsp, err := c.httpClient.Do(httpReq)
 		if err != nil {
 			return err
 		}
 		defer httpRsp.Body.Close()

 		if err = googleapi.CheckResponse(httpRsp); err != nil {
 			return err
 		}

 		buf, err := io.ReadAll(httpRsp.Body)
 		if err != nil {
 			return err
 		}

 		if err := unm.Unmarshal(buf, resp); err != nil {
 			return err
 		}

 		return nil
 	}, opts...)
 	if e != nil {
 		return nil, e
 	}
 	return resp, nil
 }

 // CommentIterator manages a stream of *supportpb.Comment.
 type CommentIterator struct {
 	items    []*supportpb.Comment
 	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 []*supportpb.Comment, nextPageToken string, err error)
 }

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

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

 func (it *CommentIterator) takeBuf() interface{} {
 	b := it.items
 	it.items = nil
 	return b
 }
	// Copyright 2023 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 support

	import (
	"bytes"
	"context"
	"fmt"
	"io"
	"math"
	"net/http"
	"net/url"
	"time"

	supportpb "cloud.google.com/go/support/apiv2/supportpb"
	gax "github.com/googleapis/gax-go/v2"
	"google.golang.org/api/googleapi"
	"google.golang.org/api/iterator"
	"google.golang.org/api/option"
	"google.golang.org/api/option/internaloption"
	gtransport "google.golang.org/api/transport/grpc"
	httptransport "google.golang.org/api/transport/http"
	"google.golang.org/grpc"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/metadata"
	"google.golang.org/protobuf/encoding/protojson"
	"google.golang.org/protobuf/proto"
	)

	var newCommentClientHook clientHook

	// CommentCallOptions contains the retry settings for each method of CommentClient.
	type CommentCallOptions struct {
	ListComments []gax.CallOption
	CreateComment []gax.CallOption
	}

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

	func defaultCommentCallOptions() *CommentCallOptions {
	return &CommentCallOptions{
	ListComments: []gax.CallOption{
	gax.WithTimeout(60000 * time.Millisecond),
	gax.WithRetry(func() gax.Retryer {
	return gax.OnCodes([]codes.Code{
	codes.Unavailable,
	}, gax.Backoff{
	Initial: 1000 * time.Millisecond,
	Max: 10000 * time.Millisecond,
	Multiplier: 1.30,
	})
	}),
	},
	CreateComment: []gax.CallOption{
	gax.WithTimeout(60000 * time.Millisecond),
	},
	}
	}

	func defaultCommentRESTCallOptions() *CommentCallOptions {
	return &CommentCallOptions{
	ListComments: []gax.CallOption{
	gax.WithTimeout(60000 * time.Millisecond),
	gax.WithRetry(func() gax.Retryer {
	return gax.OnHTTPCodes(gax.Backoff{
	Initial: 1000 * time.Millisecond,
	Max: 10000 * time.Millisecond,
	Multiplier: 1.30,
	},
	http.StatusServiceUnavailable)
	}),
	},
	CreateComment: []gax.CallOption{
	gax.WithTimeout(60000 * time.Millisecond),
	},
	}
	}

	// internalCommentClient is an interface that defines the methods available from Google Cloud Support API.
	type internalCommentClient interface {
	Close() error
	setGoogleClientInfo(...string)
	Connection() *grpc.ClientConn
	ListComments(context.Context, supportpb.ListCommentsRequest, ...gax.CallOption) CommentIterator
	CreateComment(context.Context, supportpb.CreateCommentRequest, ...gax.CallOption) (supportpb.Comment, error)
	}

	// CommentClient is a client for interacting with Google Cloud Support API.
	// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
	//
	// A service to manage comments on cases.
	type CommentClient struct {
	// The internal transport-dependent client.
	internalClient internalCommentClient

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

	// 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 *CommentClient) 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 *CommentClient) setGoogleClientInfo(keyval ...string) {
	c.internalClient.setGoogleClientInfo(keyval...)
	}

	// Connection returns a connection to the API service.
	//
	// Deprecated: Connections are now pooled so this method does not always
	// return the same resource.
	func (c CommentClient) Connection() grpc.ClientConn {
	return c.internalClient.Connection()
	}

	// ListComments retrieve all Comments associated with the Case object.
	func (c CommentClient) ListComments(ctx context.Context, req supportpb.ListCommentsRequest, opts ...gax.CallOption) *CommentIterator {
	return c.internalClient.ListComments(ctx, req, opts...)
	}

	// CreateComment add a new comment to the specified Case.
	// The comment object must have the following fields set: body.
	func (c CommentClient) CreateComment(ctx context.Context, req supportpb.CreateCommentRequest, opts ...gax.CallOption) (*supportpb.Comment, error) {
	return c.internalClient.CreateComment(ctx, req, opts...)
	}

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

	// Points back to the CallOptions field of the containing CommentClient
	CallOptions **CommentCallOptions

	// The gRPC API client.
	commentClient supportpb.CommentServiceClient

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

	// NewCommentClient creates a new comment service client based on gRPC.
	// The returned client must be Closed when it is done being used to clean up its underlying connections.
	//
	// A service to manage comments on cases.
	func NewCommentClient(ctx context.Context, opts ...option.ClientOption) (*CommentClient, error) {
	clientOpts := defaultCommentGRPCClientOptions()
	if newCommentClientHook != nil {
	hookOpts, err := newCommentClientHook(ctx, clientHookParams{})
	if err != nil {
	return nil, err
	}
	clientOpts = append(clientOpts, hookOpts...)
	}

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

	c := &commentGRPCClient{
	connPool: connPool,
	commentClient: supportpb.NewCommentServiceClient(connPool),
	CallOptions: &client.CallOptions,
	}
	c.setGoogleClientInfo()

	client.internalClient = c

	return &client, nil
	}

	// Connection returns a connection to the API service.
	//
	// Deprecated: Connections are now pooled so this method does not always
	// return the same resource.
	func (c commentGRPCClient) 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 *commentGRPCClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", gax.GoVersion}, 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 *commentGRPCClient) Close() error {
	return c.connPool.Close()
	}

	// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
	type commentRESTClient struct {
	// The http endpoint to connect to.
	endpoint string

	// The http client.
	httpClient *http.Client

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

	// Points back to the CallOptions field of the containing CommentClient
	CallOptions **CommentCallOptions
	}

	// NewCommentRESTClient creates a new comment service rest client.
	//
	// A service to manage comments on cases.
	func NewCommentRESTClient(ctx context.Context, opts ...option.ClientOption) (*CommentClient, error) {
	clientOpts := append(defaultCommentRESTClientOptions(), opts...)
	httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
	if err != nil {
	return nil, err
	}

	callOpts := defaultCommentRESTCallOptions()
	c := &commentRESTClient{
	endpoint: endpoint,
	httpClient: httpClient,
	CallOptions: &callOpts,
	}
	c.setGoogleClientInfo()

	return &CommentClient{internalClient: c, CallOptions: callOpts}, nil
	}

	func defaultCommentRESTClientOptions() []option.ClientOption {
	return []option.ClientOption{
	internaloption.WithDefaultEndpoint("https://cloudsupport.googleapis.com"),
	internaloption.WithDefaultMTLSEndpoint("https://cloudsupport.mtls.googleapis.com"),
	internaloption.WithDefaultAudience("https://cloudsupport.googleapis.com/"),
	internaloption.WithDefaultScopes(DefaultAuthScopes()...),
	}
	}

	// 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 *commentRESTClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", gax.GoVersion}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "rest", "UNKNOWN")
	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 *commentRESTClient) Close() error {
	// Replace httpClient with nil to force cleanup.
	c.httpClient = nil
	return nil
	}

	// Connection returns a connection to the API service.
	//
	// Deprecated: This method always returns nil.
	func (c commentRESTClient) Connection() grpc.ClientConn {
	return nil
	}
	func (c commentGRPCClient) ListComments(ctx context.Context, req supportpb.ListCommentsRequest, opts ...gax.CallOption) *CommentIterator {
	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).ListComments[0:len((c.CallOptions).ListComments):len((*c.CallOptions).ListComments)], opts...)
	it := &CommentIterator{}
	req = proto.Clone(req).(*supportpb.ListCommentsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*supportpb.Comment, string, error) {
	resp := &supportpb.ListCommentsResponse{}
	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.commentClient.ListComments(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	if err != nil {
	return nil, "", err
	}

	it.Response = resp
	return resp.GetComments(), 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 commentGRPCClient) CreateComment(ctx context.Context, req supportpb.CreateCommentRequest, opts ...gax.CallOption) (*supportpb.Comment, error) {
	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).CreateComment[0:len((c.CallOptions).CreateComment):len((*c.CallOptions).CreateComment)], opts...)
	var resp *supportpb.Comment
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	var err error
	resp, err = c.commentClient.CreateComment(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	if err != nil {
	return nil, err
	}
	return resp, nil
	}

	// ListComments retrieve all Comments associated with the Case object.
	func (c commentRESTClient) ListComments(ctx context.Context, req supportpb.ListCommentsRequest, opts ...gax.CallOption) *CommentIterator {
	it := &CommentIterator{}
	req = proto.Clone(req).(*supportpb.ListCommentsRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*supportpb.Comment, string, error) {
	resp := &supportpb.ListCommentsResponse{}
	if pageToken != "" {
	req.PageToken = pageToken
	}
	if pageSize > math.MaxInt32 {
	req.PageSize = math.MaxInt32
	} else if pageSize != 0 {
	req.PageSize = int32(pageSize)
	}
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
	return nil, "", err
	}
	baseUrl.Path += fmt.Sprintf("/v2/%v/comments", req.GetParent())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")
	if req.GetPageSize() != 0 {
	params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
	}
	if req.GetPageToken() != "" {
	params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	headers := buildHeaders(ctx, c.xGoogMetadata, metadata.Pairs("Content-Type", "application/json"))
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	if settings.Path != "" {
	baseUrl.Path = settings.Path
	}
	httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
	if err != nil {
	return err
	}
	httpReq.Header = headers

	httpRsp, err := c.httpClient.Do(httpReq)
	if err != nil {
	return err
	}
	defer httpRsp.Body.Close()

	if err = googleapi.CheckResponse(httpRsp); err != nil {
	return err
	}

	buf, err := io.ReadAll(httpRsp.Body)
	if err != nil {
	return err
	}

	if err := unm.Unmarshal(buf, resp); err != nil {
	return err
	}

	return nil
	}, opts...)
	if e != nil {
	return nil, "", e
	}
	it.Response = resp
	return resp.GetComments(), 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
	}

	// CreateComment add a new comment to the specified Case.
	// The comment object must have the following fields set: body.
	func (c commentRESTClient) CreateComment(ctx context.Context, req supportpb.CreateCommentRequest, opts ...gax.CallOption) (*supportpb.Comment, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	body := req.GetComment()
	jsonReq, err := m.Marshal(body)
	if err != nil {
	return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
	return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v2/%v/comments", req.GetParent())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((c.CallOptions).CreateComment[0:len((c.CallOptions).CreateComment):len((*c.CallOptions).CreateComment)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &supportpb.Comment{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	if settings.Path != "" {
	baseUrl.Path = settings.Path
	}
	httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
	if err != nil {
	return err
	}
	httpReq = httpReq.WithContext(ctx)
	httpReq.Header = headers

	httpRsp, err := c.httpClient.Do(httpReq)
	if err != nil {
	return err
	}
	defer httpRsp.Body.Close()

	if err = googleapi.CheckResponse(httpRsp); err != nil {
	return err
	}

	buf, err := io.ReadAll(httpRsp.Body)
	if err != nil {
	return err
	}

	if err := unm.Unmarshal(buf, resp); err != nil {
	return err
	}

	return nil
	}, opts...)
	if e != nil {
	return nil, e
	}
	return resp, nil
	}

	// CommentIterator manages a stream of *supportpb.Comment.
	type CommentIterator struct {
	items []*supportpb.Comment
	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 []*supportpb.Comment, nextPageToken string, err error)
	}

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

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

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