vision/apiv1p1beta1/image_annotator_client.go - gocloud - Git at Google

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

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

 package vision

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

 	"cloud.google.com/go/vision/v2/apiv1p1beta1/visionpb"
 	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/grpc/metadata"
 	"google.golang.org/protobuf/encoding/protojson"
 )

 var newImageAnnotatorClientHook clientHook

 // ImageAnnotatorCallOptions contains the retry settings for each method of ImageAnnotatorClient.
 type ImageAnnotatorCallOptions struct {
 	BatchAnnotateImages []gax.CallOption
 }

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

 func defaultImageAnnotatorCallOptions() *ImageAnnotatorCallOptions {
 	return &ImageAnnotatorCallOptions{
 		BatchAnnotateImages: []gax.CallOption{
 			gax.WithRetry(func() gax.Retryer {
 				return gax.OnCodes([]codes.Code{
 					codes.Unavailable,
 					codes.DeadlineExceeded,
 				}, gax.Backoff{
 					Initial:    100 * time.Millisecond,
 					Max:        60000 * time.Millisecond,
 					Multiplier: 1.30,
 				})
 			}),
 		},
 	}
 }

 func defaultImageAnnotatorRESTCallOptions() *ImageAnnotatorCallOptions {
 	return &ImageAnnotatorCallOptions{
 		BatchAnnotateImages: []gax.CallOption{
 			gax.WithRetry(func() gax.Retryer {
 				return gax.OnHTTPCodes(gax.Backoff{
 					Initial:    100 * time.Millisecond,
 					Max:        60000 * time.Millisecond,
 					Multiplier: 1.30,
 				},
 					http.StatusServiceUnavailable,
 					http.StatusGatewayTimeout)
 			}),
 		},
 	}
 }

 // internalImageAnnotatorClient is an interface that defines the methods available from Cloud Vision API.
 type internalImageAnnotatorClient interface {
 	Close() error
 	setGoogleClientInfo(...string)
 	Connection() *grpc.ClientConn
 	BatchAnnotateImages(context.Context, *visionpb.BatchAnnotateImagesRequest, ...gax.CallOption) (*visionpb.BatchAnnotateImagesResponse, error)
 }

 // ImageAnnotatorClient is a client for interacting with Cloud Vision API.
 // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
 //
 // Service that performs Google Cloud Vision API detection tasks over client
 // images, such as face, landmark, logo, label, and text detection. The
 // ImageAnnotator service returns detected entities from the images.
 type ImageAnnotatorClient struct {
 	// The internal transport-dependent client.
 	internalClient internalImageAnnotatorClient

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

 // 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 *ImageAnnotatorClient) 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 *ImageAnnotatorClient) 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 *ImageAnnotatorClient) Connection() *grpc.ClientConn {
 	return c.internalClient.Connection()
 }

 // BatchAnnotateImages run image detection and annotation for a batch of images.
 func (c *ImageAnnotatorClient) BatchAnnotateImages(ctx context.Context, req *visionpb.BatchAnnotateImagesRequest, opts ...gax.CallOption) (*visionpb.BatchAnnotateImagesResponse, error) {
 	return c.internalClient.BatchAnnotateImages(ctx, req, opts...)
 }

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

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

 	// Points back to the CallOptions field of the containing ImageAnnotatorClient
 	CallOptions **ImageAnnotatorCallOptions

 	// The gRPC API client.
 	imageAnnotatorClient visionpb.ImageAnnotatorClient

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

 // NewImageAnnotatorClient creates a new image annotator client based on gRPC.
 // The returned client must be Closed when it is done being used to clean up its underlying connections.
 //
 // Service that performs Google Cloud Vision API detection tasks over client
 // images, such as face, landmark, logo, label, and text detection. The
 // ImageAnnotator service returns detected entities from the images.
 func NewImageAnnotatorClient(ctx context.Context, opts ...option.ClientOption) (*ImageAnnotatorClient, error) {
 	clientOpts := defaultImageAnnotatorGRPCClientOptions()
 	if newImageAnnotatorClientHook != nil {
 		hookOpts, err := newImageAnnotatorClientHook(ctx, clientHookParams{})
 		if err != nil {
 			return nil, err
 		}
 		clientOpts = append(clientOpts, hookOpts...)
 	}

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

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

 	c := &imageAnnotatorGRPCClient{
 		connPool:             connPool,
 		disableDeadlines:     disableDeadlines,
 		imageAnnotatorClient: visionpb.NewImageAnnotatorClient(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 *imageAnnotatorGRPCClient) 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 *imageAnnotatorGRPCClient) setGoogleClientInfo(keyval ...string) {
 	kv := append([]string{"gl-go", versionGo()}, keyval...)
 	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "grpc", grpc.Version)
 	c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
 }

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

 // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
 type imageAnnotatorRESTClient 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 ImageAnnotatorClient
 	CallOptions **ImageAnnotatorCallOptions
 }

 // NewImageAnnotatorRESTClient creates a new image annotator rest client.
 //
 // Service that performs Google Cloud Vision API detection tasks over client
 // images, such as face, landmark, logo, label, and text detection. The
 // ImageAnnotator service returns detected entities from the images.
 func NewImageAnnotatorRESTClient(ctx context.Context, opts ...option.ClientOption) (*ImageAnnotatorClient, error) {
 	clientOpts := append(defaultImageAnnotatorRESTClientOptions(), opts...)
 	httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
 	if err != nil {
 		return nil, err
 	}

 	callOpts := defaultImageAnnotatorRESTCallOptions()
 	c := &imageAnnotatorRESTClient{
 		endpoint:    endpoint,
 		httpClient:  httpClient,
 		CallOptions: &callOpts,
 	}
 	c.setGoogleClientInfo()

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

 func defaultImageAnnotatorRESTClientOptions() []option.ClientOption {
 	return []option.ClientOption{
 		internaloption.WithDefaultEndpoint("https://vision.googleapis.com"),
 		internaloption.WithDefaultMTLSEndpoint("https://vision.mtls.googleapis.com"),
 		internaloption.WithDefaultAudience("https://vision.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 *imageAnnotatorRESTClient) setGoogleClientInfo(keyval ...string) {
 	kv := append([]string{"gl-go", versionGo()}, 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 *imageAnnotatorRESTClient) 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 *imageAnnotatorRESTClient) Connection() *grpc.ClientConn {
 	return nil
 }
 func (c *imageAnnotatorGRPCClient) BatchAnnotateImages(ctx context.Context, req *visionpb.BatchAnnotateImagesRequest, opts ...gax.CallOption) (*visionpb.BatchAnnotateImagesResponse, error) {
 	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
 		cctx, cancel := context.WithTimeout(ctx, 600000*time.Millisecond)
 		defer cancel()
 		ctx = cctx
 	}
 	ctx = insertMetadata(ctx, c.xGoogMetadata)
 	opts = append((*c.CallOptions).BatchAnnotateImages[0:len((*c.CallOptions).BatchAnnotateImages):len((*c.CallOptions).BatchAnnotateImages)], opts...)
 	var resp *visionpb.BatchAnnotateImagesResponse
 	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 		var err error
 		resp, err = c.imageAnnotatorClient.BatchAnnotateImages(ctx, req, settings.GRPC...)
 		return err
 	}, opts...)
 	if err != nil {
 		return nil, err
 	}
 	return resp, nil
 }

 // BatchAnnotateImages run image detection and annotation for a batch of images.
 func (c *imageAnnotatorRESTClient) BatchAnnotateImages(ctx context.Context, req *visionpb.BatchAnnotateImagesRequest, opts ...gax.CallOption) (*visionpb.BatchAnnotateImagesResponse, 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("/v1p1beta1/images:annotate")

 	// Build HTTP headers from client and context metadata.
 	headers := buildHeaders(ctx, c.xGoogMetadata, metadata.Pairs("Content-Type", "application/json"))
 	opts = append((*c.CallOptions).BatchAnnotateImages[0:len((*c.CallOptions).BatchAnnotateImages):len((*c.CallOptions).BatchAnnotateImages)], opts...)
 	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
 	resp := &visionpb.BatchAnnotateImagesResponse{}
 	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 := ioutil.ReadAll(httpRsp.Body)
 		if err != nil {
 			return err
 		}

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

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

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

	package vision

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

	"cloud.google.com/go/vision/v2/apiv1p1beta1/visionpb"
	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/grpc/metadata"
	"google.golang.org/protobuf/encoding/protojson"
	)

	var newImageAnnotatorClientHook clientHook

	// ImageAnnotatorCallOptions contains the retry settings for each method of ImageAnnotatorClient.
	type ImageAnnotatorCallOptions struct {
	BatchAnnotateImages []gax.CallOption
	}

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

	func defaultImageAnnotatorCallOptions() *ImageAnnotatorCallOptions {
	return &ImageAnnotatorCallOptions{
	BatchAnnotateImages: []gax.CallOption{
	gax.WithRetry(func() gax.Retryer {
	return gax.OnCodes([]codes.Code{
	codes.Unavailable,
	codes.DeadlineExceeded,
	}, gax.Backoff{
	Initial: 100 * time.Millisecond,
	Max: 60000 * time.Millisecond,
	Multiplier: 1.30,
	})
	}),
	},
	}
	}

	func defaultImageAnnotatorRESTCallOptions() *ImageAnnotatorCallOptions {
	return &ImageAnnotatorCallOptions{
	BatchAnnotateImages: []gax.CallOption{
	gax.WithRetry(func() gax.Retryer {
	return gax.OnHTTPCodes(gax.Backoff{
	Initial: 100 * time.Millisecond,
	Max: 60000 * time.Millisecond,
	Multiplier: 1.30,
	},
	http.StatusServiceUnavailable,
	http.StatusGatewayTimeout)
	}),
	},
	}
	}

	// internalImageAnnotatorClient is an interface that defines the methods available from Cloud Vision API.
	type internalImageAnnotatorClient interface {
	Close() error
	setGoogleClientInfo(...string)
	Connection() *grpc.ClientConn
	BatchAnnotateImages(context.Context, visionpb.BatchAnnotateImagesRequest, ...gax.CallOption) (visionpb.BatchAnnotateImagesResponse, error)
	}

	// ImageAnnotatorClient is a client for interacting with Cloud Vision API.
	// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
	//
	// Service that performs Google Cloud Vision API detection tasks over client
	// images, such as face, landmark, logo, label, and text detection. The
	// ImageAnnotator service returns detected entities from the images.
	type ImageAnnotatorClient struct {
	// The internal transport-dependent client.
	internalClient internalImageAnnotatorClient

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

	// 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 *ImageAnnotatorClient) 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 *ImageAnnotatorClient) 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 ImageAnnotatorClient) Connection() grpc.ClientConn {
	return c.internalClient.Connection()
	}

	// BatchAnnotateImages run image detection and annotation for a batch of images.
	func (c ImageAnnotatorClient) BatchAnnotateImages(ctx context.Context, req visionpb.BatchAnnotateImagesRequest, opts ...gax.CallOption) (*visionpb.BatchAnnotateImagesResponse, error) {
	return c.internalClient.BatchAnnotateImages(ctx, req, opts...)
	}

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

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

	// Points back to the CallOptions field of the containing ImageAnnotatorClient
	CallOptions **ImageAnnotatorCallOptions

	// The gRPC API client.
	imageAnnotatorClient visionpb.ImageAnnotatorClient

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

	// NewImageAnnotatorClient creates a new image annotator client based on gRPC.
	// The returned client must be Closed when it is done being used to clean up its underlying connections.
	//
	// Service that performs Google Cloud Vision API detection tasks over client
	// images, such as face, landmark, logo, label, and text detection. The
	// ImageAnnotator service returns detected entities from the images.
	func NewImageAnnotatorClient(ctx context.Context, opts ...option.ClientOption) (*ImageAnnotatorClient, error) {
	clientOpts := defaultImageAnnotatorGRPCClientOptions()
	if newImageAnnotatorClientHook != nil {
	hookOpts, err := newImageAnnotatorClientHook(ctx, clientHookParams{})
	if err != nil {
	return nil, err
	}
	clientOpts = append(clientOpts, hookOpts...)
	}

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

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

	c := &imageAnnotatorGRPCClient{
	connPool: connPool,
	disableDeadlines: disableDeadlines,
	imageAnnotatorClient: visionpb.NewImageAnnotatorClient(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 imageAnnotatorGRPCClient) 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 *imageAnnotatorGRPCClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", versionGo()}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "grpc", grpc.Version)
	c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
	}

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

	// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
	type imageAnnotatorRESTClient 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 ImageAnnotatorClient
	CallOptions **ImageAnnotatorCallOptions
	}

	// NewImageAnnotatorRESTClient creates a new image annotator rest client.
	//
	// Service that performs Google Cloud Vision API detection tasks over client
	// images, such as face, landmark, logo, label, and text detection. The
	// ImageAnnotator service returns detected entities from the images.
	func NewImageAnnotatorRESTClient(ctx context.Context, opts ...option.ClientOption) (*ImageAnnotatorClient, error) {
	clientOpts := append(defaultImageAnnotatorRESTClientOptions(), opts...)
	httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
	if err != nil {
	return nil, err
	}

	callOpts := defaultImageAnnotatorRESTCallOptions()
	c := &imageAnnotatorRESTClient{
	endpoint: endpoint,
	httpClient: httpClient,
	CallOptions: &callOpts,
	}
	c.setGoogleClientInfo()

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

	func defaultImageAnnotatorRESTClientOptions() []option.ClientOption {
	return []option.ClientOption{
	internaloption.WithDefaultEndpoint("https://vision.googleapis.com"),
	internaloption.WithDefaultMTLSEndpoint("https://vision.mtls.googleapis.com"),
	internaloption.WithDefaultAudience("https://vision.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 *imageAnnotatorRESTClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", versionGo()}, 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 *imageAnnotatorRESTClient) 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 imageAnnotatorRESTClient) Connection() grpc.ClientConn {
	return nil
	}
	func (c imageAnnotatorGRPCClient) BatchAnnotateImages(ctx context.Context, req visionpb.BatchAnnotateImagesRequest, opts ...gax.CallOption) (*visionpb.BatchAnnotateImagesResponse, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
	cctx, cancel := context.WithTimeout(ctx, 600000*time.Millisecond)
	defer cancel()
	ctx = cctx
	}
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append((c.CallOptions).BatchAnnotateImages[0:len((c.CallOptions).BatchAnnotateImages):len((*c.CallOptions).BatchAnnotateImages)], opts...)
	var resp *visionpb.BatchAnnotateImagesResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	var err error
	resp, err = c.imageAnnotatorClient.BatchAnnotateImages(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	if err != nil {
	return nil, err
	}
	return resp, nil
	}

	// BatchAnnotateImages run image detection and annotation for a batch of images.
	func (c imageAnnotatorRESTClient) BatchAnnotateImages(ctx context.Context, req visionpb.BatchAnnotateImagesRequest, opts ...gax.CallOption) (*visionpb.BatchAnnotateImagesResponse, 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("/v1p1beta1/images:annotate")

	// Build HTTP headers from client and context metadata.
	headers := buildHeaders(ctx, c.xGoogMetadata, metadata.Pairs("Content-Type", "application/json"))
	opts = append((c.CallOptions).BatchAnnotateImages[0:len((c.CallOptions).BatchAnnotateImages):len((*c.CallOptions).BatchAnnotateImages)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &visionpb.BatchAnnotateImagesResponse{}
	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 := ioutil.ReadAll(httpRsp.Body)
	if err != nil {
	return err
	}

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

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