videointelligence/apiv1beta2/video_intelligence_client.go - gocloud - Git at Google

 // Copyright 2024 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 videointelligence

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

 	"cloud.google.com/go/longrunning"
 	lroauto "cloud.google.com/go/longrunning/autogen"
 	longrunningpb "cloud.google.com/go/longrunning/autogen/longrunningpb"
 	videointelligencepb "cloud.google.com/go/videointelligence/apiv1beta2/videointelligencepb"
 	gax "github.com/googleapis/gax-go/v2"
 	"google.golang.org/api/googleapi"
 	"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/protobuf/encoding/protojson"
 )

 var newClientHook clientHook

 // CallOptions contains the retry settings for each method of Client.
 type CallOptions struct {
 	AnnotateVideo []gax.CallOption
 }

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

 func defaultCallOptions() *CallOptions {
 	return &CallOptions{
 		AnnotateVideo: []gax.CallOption{
 			gax.WithTimeout(600000 * time.Millisecond),
 			gax.WithRetry(func() gax.Retryer {
 				return gax.OnCodes([]codes.Code{
 					codes.Unavailable,
 					codes.DeadlineExceeded,
 				}, gax.Backoff{
 					Initial:    1000 * time.Millisecond,
 					Max:        120000 * time.Millisecond,
 					Multiplier: 2.50,
 				})
 			}),
 		},
 	}
 }

 func defaultRESTCallOptions() *CallOptions {
 	return &CallOptions{
 		AnnotateVideo: []gax.CallOption{
 			gax.WithTimeout(600000 * time.Millisecond),
 			gax.WithRetry(func() gax.Retryer {
 				return gax.OnHTTPCodes(gax.Backoff{
 					Initial:    1000 * time.Millisecond,
 					Max:        120000 * time.Millisecond,
 					Multiplier: 2.50,
 				},
 					http.StatusServiceUnavailable,
 					http.StatusGatewayTimeout)
 			}),
 		},
 	}
 }

 // internalClient is an interface that defines the methods available from Google Cloud Video Intelligence API.
 type internalClient interface {
 	Close() error
 	setGoogleClientInfo(...string)
 	Connection() *grpc.ClientConn
 	AnnotateVideo(context.Context, *videointelligencepb.AnnotateVideoRequest, ...gax.CallOption) (*AnnotateVideoOperation, error)
 	AnnotateVideoOperation(name string) *AnnotateVideoOperation
 }

 // Client is a client for interacting with Google Cloud Video Intelligence API.
 // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
 //
 // Service that implements Google Cloud Video Intelligence API.
 type Client struct {
 	// The internal transport-dependent client.
 	internalClient internalClient

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

 	// LROClient is used internally to handle long-running operations.
 	// It is exposed so that its CallOptions can be modified if required.
 	// Users should not Close this client.
 	LROClient *lroauto.OperationsClient
 }

 // 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: Connections are now pooled so this method does not always
 // return the same resource.
 func (c *Client) Connection() *grpc.ClientConn {
 	return c.internalClient.Connection()
 }

 // AnnotateVideo performs asynchronous video annotation. Progress and results can be
 // retrieved through the google.longrunning.Operations interface.
 // Operation.metadata contains AnnotateVideoProgress (progress).
 // Operation.response contains AnnotateVideoResponse (results).
 func (c *Client) AnnotateVideo(ctx context.Context, req *videointelligencepb.AnnotateVideoRequest, opts ...gax.CallOption) (*AnnotateVideoOperation, error) {
 	return c.internalClient.AnnotateVideo(ctx, req, opts...)
 }

 // AnnotateVideoOperation returns a new AnnotateVideoOperation from a given name.
 // The name must be that of a previously created AnnotateVideoOperation, possibly from a different process.
 func (c *Client) AnnotateVideoOperation(name string) *AnnotateVideoOperation {
 	return c.internalClient.AnnotateVideoOperation(name)
 }

 // gRPCClient is a client for interacting with Google Cloud Video Intelligence 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

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

 	// The gRPC API client.
 	client videointelligencepb.VideoIntelligenceServiceClient

 	// LROClient is used internally to handle long-running operations.
 	// It is exposed so that its CallOptions can be modified if required.
 	// Users should not Close this client.
 	LROClient **lroauto.OperationsClient

 	// The x-goog-* metadata to be sent with each request.
 	xGoogHeaders []string
 }

 // NewClient creates a new video intelligence service client based on gRPC.
 // The returned client must be Closed when it is done being used to clean up its underlying connections.
 //
 // Service that implements Google Cloud Video Intelligence API.
 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...)
 	}

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

 	c := &gRPCClient{
 		connPool:    connPool,
 		client:      videointelligencepb.NewVideoIntelligenceServiceClient(connPool),
 		CallOptions: &client.CallOptions,
 	}
 	c.setGoogleClientInfo()

 	client.internalClient = c

 	client.LROClient, err = lroauto.NewOperationsClient(ctx, gtransport.WithConnPool(connPool))
 	if err != nil {
 		// This error "should not happen", since we are just reusing old connection pool
 		// and never actually need to dial.
 		// If this does happen, we could leak connp. However, we cannot close conn:
 		// If the user invoked the constructor with option.WithGRPCConn,
 		// we would close a connection that's still in use.
 		// TODO: investigate error conditions.
 		return nil, err
 	}
 	c.LROClient = &client.LROClient
 	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 *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", gax.GoVersion}, keyval...)
 	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "grpc", grpc.Version)
 	c.xGoogHeaders = []string{"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()
 }

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

 	// The http client.
 	httpClient *http.Client

 	// LROClient is used internally to handle long-running operations.
 	// It is exposed so that its CallOptions can be modified if required.
 	// Users should not Close this client.
 	LROClient **lroauto.OperationsClient

 	// The x-goog-* headers to be sent with each request.
 	xGoogHeaders []string

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

 // NewRESTClient creates a new video intelligence service rest client.
 //
 // Service that implements Google Cloud Video Intelligence API.
 func NewRESTClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) {
 	clientOpts := append(defaultRESTClientOptions(), opts...)
 	httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
 	if err != nil {
 		return nil, err
 	}

 	callOpts := defaultRESTCallOptions()
 	c := &restClient{
 		endpoint:    endpoint,
 		httpClient:  httpClient,
 		CallOptions: &callOpts,
 	}
 	c.setGoogleClientInfo()

 	lroOpts := []option.ClientOption{
 		option.WithHTTPClient(httpClient),
 		option.WithEndpoint(endpoint),
 	}
 	opClient, err := lroauto.NewOperationsRESTClient(ctx, lroOpts...)
 	if err != nil {
 		return nil, err
 	}
 	c.LROClient = &opClient

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

 func defaultRESTClientOptions() []option.ClientOption {
 	return []option.ClientOption{
 		internaloption.WithDefaultEndpoint("https://videointelligence.googleapis.com"),
 		internaloption.WithDefaultEndpointTemplate("https://videointelligence.UNIVERSE_DOMAIN"),
 		internaloption.WithDefaultMTLSEndpoint("https://videointelligence.mtls.googleapis.com"),
 		internaloption.WithDefaultUniverseDomain("googleapis.com"),
 		internaloption.WithDefaultAudience("https://videointelligence.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 *restClient) setGoogleClientInfo(keyval ...string) {
 	kv := append([]string{"gl-go", gax.GoVersion}, keyval...)
 	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "rest", "UNKNOWN")
 	c.xGoogHeaders = []string{"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 *restClient) 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 *restClient) Connection() *grpc.ClientConn {
 	return nil
 }
 func (c *gRPCClient) AnnotateVideo(ctx context.Context, req *videointelligencepb.AnnotateVideoRequest, opts ...gax.CallOption) (*AnnotateVideoOperation, error) {
 	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, c.xGoogHeaders...)
 	opts = append((*c.CallOptions).AnnotateVideo[0:len((*c.CallOptions).AnnotateVideo):len((*c.CallOptions).AnnotateVideo)], opts...)
 	var resp *longrunningpb.Operation
 	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 		var err error
 		resp, err = c.client.AnnotateVideo(ctx, req, settings.GRPC...)
 		return err
 	}, opts...)
 	if err != nil {
 		return nil, err
 	}
 	return &AnnotateVideoOperation{
 		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
 	}, nil
 }

 // AnnotateVideo performs asynchronous video annotation. Progress and results can be
 // retrieved through the google.longrunning.Operations interface.
 // Operation.metadata contains AnnotateVideoProgress (progress).
 // Operation.response contains AnnotateVideoResponse (results).
 func (c *restClient) AnnotateVideo(ctx context.Context, req *videointelligencepb.AnnotateVideoRequest, opts ...gax.CallOption) (*AnnotateVideoOperation, error) {
 	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
 	jsonReq, err := m.Marshal(req)
 	if err != nil {
 		return nil, err
 	}

 	baseUrl, err := url.Parse(c.endpoint)
 	if err != nil {
 		return nil, err
 	}
 	baseUrl.Path += fmt.Sprintf("/v1beta2/videos:annotate")

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

 	baseUrl.RawQuery = params.Encode()

 	// Build HTTP headers from client and context metadata.
 	hds := append(c.xGoogHeaders, "Content-Type", "application/json")
 	headers := gax.BuildHeaders(ctx, hds...)
 	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
 	resp := &longrunningpb.Operation{}
 	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
 	}

 	override := fmt.Sprintf("/v1beta2/%s", resp.GetName())
 	return &AnnotateVideoOperation{
 		lro:      longrunning.InternalNewOperation(*c.LROClient, resp),
 		pollPath: override,
 	}, nil
 }

 // AnnotateVideoOperation returns a new AnnotateVideoOperation from a given name.
 // The name must be that of a previously created AnnotateVideoOperation, possibly from a different process.
 func (c *gRPCClient) AnnotateVideoOperation(name string) *AnnotateVideoOperation {
 	return &AnnotateVideoOperation{
 		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
 	}
 }

 // AnnotateVideoOperation returns a new AnnotateVideoOperation from a given name.
 // The name must be that of a previously created AnnotateVideoOperation, possibly from a different process.
 func (c *restClient) AnnotateVideoOperation(name string) *AnnotateVideoOperation {
 	override := fmt.Sprintf("/v1beta2/%s", name)
 	return &AnnotateVideoOperation{
 		lro:      longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
 		pollPath: override,
 	}
 }
	// Copyright 2024 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 videointelligence

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

	"cloud.google.com/go/longrunning"
	lroauto "cloud.google.com/go/longrunning/autogen"
	longrunningpb "cloud.google.com/go/longrunning/autogen/longrunningpb"
	videointelligencepb "cloud.google.com/go/videointelligence/apiv1beta2/videointelligencepb"
	gax "github.com/googleapis/gax-go/v2"
	"google.golang.org/api/googleapi"
	"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/protobuf/encoding/protojson"
	)

	var newClientHook clientHook

	// CallOptions contains the retry settings for each method of Client.
	type CallOptions struct {
	AnnotateVideo []gax.CallOption
	}

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

	func defaultCallOptions() *CallOptions {
	return &CallOptions{
	AnnotateVideo: []gax.CallOption{
	gax.WithTimeout(600000 * time.Millisecond),
	gax.WithRetry(func() gax.Retryer {
	return gax.OnCodes([]codes.Code{
	codes.Unavailable,
	codes.DeadlineExceeded,
	}, gax.Backoff{
	Initial: 1000 * time.Millisecond,
	Max: 120000 * time.Millisecond,
	Multiplier: 2.50,
	})
	}),
	},
	}
	}

	func defaultRESTCallOptions() *CallOptions {
	return &CallOptions{
	AnnotateVideo: []gax.CallOption{
	gax.WithTimeout(600000 * time.Millisecond),
	gax.WithRetry(func() gax.Retryer {
	return gax.OnHTTPCodes(gax.Backoff{
	Initial: 1000 * time.Millisecond,
	Max: 120000 * time.Millisecond,
	Multiplier: 2.50,
	},
	http.StatusServiceUnavailable,
	http.StatusGatewayTimeout)
	}),
	},
	}
	}

	// internalClient is an interface that defines the methods available from Google Cloud Video Intelligence API.
	type internalClient interface {
	Close() error
	setGoogleClientInfo(...string)
	Connection() *grpc.ClientConn
	AnnotateVideo(context.Context, videointelligencepb.AnnotateVideoRequest, ...gax.CallOption) (AnnotateVideoOperation, error)
	AnnotateVideoOperation(name string) *AnnotateVideoOperation
	}

	// Client is a client for interacting with Google Cloud Video Intelligence API.
	// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
	//
	// Service that implements Google Cloud Video Intelligence API.
	type Client struct {
	// The internal transport-dependent client.
	internalClient internalClient

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

	// LROClient is used internally to handle long-running operations.
	// It is exposed so that its CallOptions can be modified if required.
	// Users should not Close this client.
	LROClient *lroauto.OperationsClient
	}

	// 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: Connections are now pooled so this method does not always
	// return the same resource.
	func (c Client) Connection() grpc.ClientConn {
	return c.internalClient.Connection()
	}

	// AnnotateVideo performs asynchronous video annotation. Progress and results can be
	// retrieved through the google.longrunning.Operations interface.
	// Operation.metadata contains AnnotateVideoProgress (progress).
	// Operation.response contains AnnotateVideoResponse (results).
	func (c Client) AnnotateVideo(ctx context.Context, req videointelligencepb.AnnotateVideoRequest, opts ...gax.CallOption) (*AnnotateVideoOperation, error) {
	return c.internalClient.AnnotateVideo(ctx, req, opts...)
	}

	// AnnotateVideoOperation returns a new AnnotateVideoOperation from a given name.
	// The name must be that of a previously created AnnotateVideoOperation, possibly from a different process.
	func (c Client) AnnotateVideoOperation(name string) AnnotateVideoOperation {
	return c.internalClient.AnnotateVideoOperation(name)
	}

	// gRPCClient is a client for interacting with Google Cloud Video Intelligence 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

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

	// The gRPC API client.
	client videointelligencepb.VideoIntelligenceServiceClient

	// LROClient is used internally to handle long-running operations.
	// It is exposed so that its CallOptions can be modified if required.
	// Users should not Close this client.
	LROClient **lroauto.OperationsClient

	// The x-goog-* metadata to be sent with each request.
	xGoogHeaders []string
	}

	// NewClient creates a new video intelligence service client based on gRPC.
	// The returned client must be Closed when it is done being used to clean up its underlying connections.
	//
	// Service that implements Google Cloud Video Intelligence API.
	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...)
	}

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

	c := &gRPCClient{
	connPool: connPool,
	client: videointelligencepb.NewVideoIntelligenceServiceClient(connPool),
	CallOptions: &client.CallOptions,
	}
	c.setGoogleClientInfo()

	client.internalClient = c

	client.LROClient, err = lroauto.NewOperationsClient(ctx, gtransport.WithConnPool(connPool))
	if err != nil {
	// This error "should not happen", since we are just reusing old connection pool
	// and never actually need to dial.
	// If this does happen, we could leak connp. However, we cannot close conn:
	// If the user invoked the constructor with option.WithGRPCConn,
	// we would close a connection that's still in use.
	// TODO: investigate error conditions.
	return nil, err
	}
	c.LROClient = &client.LROClient
	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 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", gax.GoVersion}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "grpc", grpc.Version)
	c.xGoogHeaders = []string{"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()
	}

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

	// The http client.
	httpClient *http.Client

	// LROClient is used internally to handle long-running operations.
	// It is exposed so that its CallOptions can be modified if required.
	// Users should not Close this client.
	LROClient **lroauto.OperationsClient

	// The x-goog-* headers to be sent with each request.
	xGoogHeaders []string

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

	// NewRESTClient creates a new video intelligence service rest client.
	//
	// Service that implements Google Cloud Video Intelligence API.
	func NewRESTClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) {
	clientOpts := append(defaultRESTClientOptions(), opts...)
	httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
	if err != nil {
	return nil, err
	}

	callOpts := defaultRESTCallOptions()
	c := &restClient{
	endpoint: endpoint,
	httpClient: httpClient,
	CallOptions: &callOpts,
	}
	c.setGoogleClientInfo()

	lroOpts := []option.ClientOption{
	option.WithHTTPClient(httpClient),
	option.WithEndpoint(endpoint),
	}
	opClient, err := lroauto.NewOperationsRESTClient(ctx, lroOpts...)
	if err != nil {
	return nil, err
	}
	c.LROClient = &opClient

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

	func defaultRESTClientOptions() []option.ClientOption {
	return []option.ClientOption{
	internaloption.WithDefaultEndpoint("https://videointelligence.googleapis.com"),
	internaloption.WithDefaultEndpointTemplate("https://videointelligence.UNIVERSE_DOMAIN"),
	internaloption.WithDefaultMTLSEndpoint("https://videointelligence.mtls.googleapis.com"),
	internaloption.WithDefaultUniverseDomain("googleapis.com"),
	internaloption.WithDefaultAudience("https://videointelligence.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 *restClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", gax.GoVersion}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "rest", "UNKNOWN")
	c.xGoogHeaders = []string{"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 *restClient) 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 restClient) Connection() grpc.ClientConn {
	return nil
	}
	func (c gRPCClient) AnnotateVideo(ctx context.Context, req videointelligencepb.AnnotateVideoRequest, opts ...gax.CallOption) (*AnnotateVideoOperation, error) {
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, c.xGoogHeaders...)
	opts = append((c.CallOptions).AnnotateVideo[0:len((c.CallOptions).AnnotateVideo):len((*c.CallOptions).AnnotateVideo)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	var err error
	resp, err = c.client.AnnotateVideo(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	if err != nil {
	return nil, err
	}
	return &AnnotateVideoOperation{
	lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
	}

	// AnnotateVideo performs asynchronous video annotation. Progress and results can be
	// retrieved through the google.longrunning.Operations interface.
	// Operation.metadata contains AnnotateVideoProgress (progress).
	// Operation.response contains AnnotateVideoResponse (results).
	func (c restClient) AnnotateVideo(ctx context.Context, req videointelligencepb.AnnotateVideoRequest, opts ...gax.CallOption) (*AnnotateVideoOperation, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	jsonReq, err := m.Marshal(req)
	if err != nil {
	return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
	return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta2/videos:annotate")

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

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := append(c.xGoogHeaders, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &longrunningpb.Operation{}
	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
	}

	override := fmt.Sprintf("/v1beta2/%s", resp.GetName())
	return &AnnotateVideoOperation{
	lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	pollPath: override,
	}, nil
	}

	// AnnotateVideoOperation returns a new AnnotateVideoOperation from a given name.
	// The name must be that of a previously created AnnotateVideoOperation, possibly from a different process.
	func (c gRPCClient) AnnotateVideoOperation(name string) AnnotateVideoOperation {
	return &AnnotateVideoOperation{
	lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
	}

	// AnnotateVideoOperation returns a new AnnotateVideoOperation from a given name.
	// The name must be that of a previously created AnnotateVideoOperation, possibly from a different process.
	func (c restClient) AnnotateVideoOperation(name string) AnnotateVideoOperation {
	override := fmt.Sprintf("/v1beta2/%s", name)
	return &AnnotateVideoOperation{
	lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	pollPath: override,
	}
	}