shopping/css/apiv1/css_products_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 css

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

 	csspb "cloud.google.com/go/shopping/css/apiv1/csspb"
 	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/protobuf/encoding/protojson"
 	"google.golang.org/protobuf/proto"
 )

 var newCssProductsClientHook clientHook

 // CssProductsCallOptions contains the retry settings for each method of CssProductsClient.
 type CssProductsCallOptions struct {
 	GetCssProduct   []gax.CallOption
 	ListCssProducts []gax.CallOption
 }

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

 func defaultCssProductsCallOptions() *CssProductsCallOptions {
 	return &CssProductsCallOptions{
 		GetCssProduct: []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,
 				})
 			}),
 		},
 		ListCssProducts: []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,
 				})
 			}),
 		},
 	}
 }

 func defaultCssProductsRESTCallOptions() *CssProductsCallOptions {
 	return &CssProductsCallOptions{
 		GetCssProduct: []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)
 			}),
 		},
 		ListCssProducts: []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)
 			}),
 		},
 	}
 }

 // internalCssProductsClient is an interface that defines the methods available from CSS API.
 type internalCssProductsClient interface {
 	Close() error
 	setGoogleClientInfo(...string)
 	Connection() *grpc.ClientConn
 	GetCssProduct(context.Context, *csspb.GetCssProductRequest, ...gax.CallOption) (*csspb.CssProduct, error)
 	ListCssProducts(context.Context, *csspb.ListCssProductsRequest, ...gax.CallOption) *CssProductIterator
 }

 // CssProductsClient is a client for interacting with CSS API.
 // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
 //
 // Service for doing get and list on Css Products(a.k.a Aggregate Offers
 // internally).
 type CssProductsClient struct {
 	// The internal transport-dependent client.
 	internalClient internalCssProductsClient

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

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

 // GetCssProduct retrieves the processed CSS Product from your CSS Center account. After
 // inserting, updating, or deleting a product input, it may take several
 // minutes before the updated final product can be retrieved.
 func (c *CssProductsClient) GetCssProduct(ctx context.Context, req *csspb.GetCssProductRequest, opts ...gax.CallOption) (*csspb.CssProduct, error) {
 	return c.internalClient.GetCssProduct(ctx, req, opts...)
 }

 // ListCssProducts lists the processed CSS Products in your CSS Center account. The response
 // might contain fewer items than specified by pageSize. Rely on pageToken to
 // determine if there are more items to be requested.
 //
 // After inserting, updating, or deleting a CSS product input, it may
 // take several minutes before the updated processed CSS product can be
 // retrieved.
 func (c *CssProductsClient) ListCssProducts(ctx context.Context, req *csspb.ListCssProductsRequest, opts ...gax.CallOption) *CssProductIterator {
 	return c.internalClient.ListCssProducts(ctx, req, opts...)
 }

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

 	// Points back to the CallOptions field of the containing CssProductsClient
 	CallOptions **CssProductsCallOptions

 	// The gRPC API client.
 	cssProductsClient csspb.CssProductsServiceClient

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

 // NewCssProductsClient creates a new css products service client based on gRPC.
 // The returned client must be Closed when it is done being used to clean up its underlying connections.
 //
 // Service for doing get and list on Css Products(a.k.a Aggregate Offers
 // internally).
 func NewCssProductsClient(ctx context.Context, opts ...option.ClientOption) (*CssProductsClient, error) {
 	clientOpts := defaultCssProductsGRPCClientOptions()
 	if newCssProductsClientHook != nil {
 		hookOpts, err := newCssProductsClientHook(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 := CssProductsClient{CallOptions: defaultCssProductsCallOptions()}

 	c := &cssProductsGRPCClient{
 		connPool:          connPool,
 		cssProductsClient: csspb.NewCssProductsServiceClient(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 *cssProductsGRPCClient) 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 *cssProductsGRPCClient) 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 *cssProductsGRPCClient) Close() error {
 	return c.connPool.Close()
 }

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

 	// The http client.
 	httpClient *http.Client

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

 	// Points back to the CallOptions field of the containing CssProductsClient
 	CallOptions **CssProductsCallOptions
 }

 // NewCssProductsRESTClient creates a new css products service rest client.
 //
 // Service for doing get and list on Css Products(a.k.a Aggregate Offers
 // internally).
 func NewCssProductsRESTClient(ctx context.Context, opts ...option.ClientOption) (*CssProductsClient, error) {
 	clientOpts := append(defaultCssProductsRESTClientOptions(), opts...)
 	httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
 	if err != nil {
 		return nil, err
 	}

 	callOpts := defaultCssProductsRESTCallOptions()
 	c := &cssProductsRESTClient{
 		endpoint:    endpoint,
 		httpClient:  httpClient,
 		CallOptions: &callOpts,
 	}
 	c.setGoogleClientInfo()

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

 func defaultCssProductsRESTClientOptions() []option.ClientOption {
 	return []option.ClientOption{
 		internaloption.WithDefaultEndpoint("https://css.googleapis.com"),
 		internaloption.WithDefaultEndpointTemplate("https://css.UNIVERSE_DOMAIN"),
 		internaloption.WithDefaultMTLSEndpoint("https://css.mtls.googleapis.com"),
 		internaloption.WithDefaultUniverseDomain("googleapis.com"),
 		internaloption.WithDefaultAudience("https://css.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 *cssProductsRESTClient) 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 *cssProductsRESTClient) 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 *cssProductsRESTClient) Connection() *grpc.ClientConn {
 	return nil
 }
 func (c *cssProductsGRPCClient) GetCssProduct(ctx context.Context, req *csspb.GetCssProductRequest, opts ...gax.CallOption) (*csspb.CssProduct, error) {
 	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

 	hds = append(c.xGoogHeaders, hds...)
 	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
 	opts = append((*c.CallOptions).GetCssProduct[0:len((*c.CallOptions).GetCssProduct):len((*c.CallOptions).GetCssProduct)], opts...)
 	var resp *csspb.CssProduct
 	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 		var err error
 		resp, err = c.cssProductsClient.GetCssProduct(ctx, req, settings.GRPC...)
 		return err
 	}, opts...)
 	if err != nil {
 		return nil, err
 	}
 	return resp, nil
 }

 func (c *cssProductsGRPCClient) ListCssProducts(ctx context.Context, req *csspb.ListCssProductsRequest, opts ...gax.CallOption) *CssProductIterator {
 	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

 	hds = append(c.xGoogHeaders, hds...)
 	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
 	opts = append((*c.CallOptions).ListCssProducts[0:len((*c.CallOptions).ListCssProducts):len((*c.CallOptions).ListCssProducts)], opts...)
 	it := &CssProductIterator{}
 	req = proto.Clone(req).(*csspb.ListCssProductsRequest)
 	it.InternalFetch = func(pageSize int, pageToken string) ([]*csspb.CssProduct, string, error) {
 		resp := &csspb.ListCssProductsResponse{}
 		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.cssProductsClient.ListCssProducts(ctx, req, settings.GRPC...)
 			return err
 		}, opts...)
 		if err != nil {
 			return nil, "", err
 		}

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

 // GetCssProduct retrieves the processed CSS Product from your CSS Center account. After
 // inserting, updating, or deleting a product input, it may take several
 // minutes before the updated final product can be retrieved.
 func (c *cssProductsRESTClient) GetCssProduct(ctx context.Context, req *csspb.GetCssProductRequest, opts ...gax.CallOption) (*csspb.CssProduct, error) {
 	baseUrl, err := url.Parse(c.endpoint)
 	if err != nil {
 		return nil, err
 	}
 	baseUrl.Path += fmt.Sprintf("/v1/%v", req.GetName())

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

 	baseUrl.RawQuery = params.Encode()

 	// Build HTTP headers from client and context metadata.
 	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

 	hds = append(c.xGoogHeaders, hds...)
 	hds = append(hds, "Content-Type", "application/json")
 	headers := gax.BuildHeaders(ctx, hds...)
 	opts = append((*c.CallOptions).GetCssProduct[0:len((*c.CallOptions).GetCssProduct):len((*c.CallOptions).GetCssProduct)], opts...)
 	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
 	resp := &csspb.CssProduct{}
 	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 = 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
 }

 // ListCssProducts lists the processed CSS Products in your CSS Center account. The response
 // might contain fewer items than specified by pageSize. Rely on pageToken to
 // determine if there are more items to be requested.
 //
 // After inserting, updating, or deleting a CSS product input, it may
 // take several minutes before the updated processed CSS product can be
 // retrieved.
 func (c *cssProductsRESTClient) ListCssProducts(ctx context.Context, req *csspb.ListCssProductsRequest, opts ...gax.CallOption) *CssProductIterator {
 	it := &CssProductIterator{}
 	req = proto.Clone(req).(*csspb.ListCssProductsRequest)
 	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
 	it.InternalFetch = func(pageSize int, pageToken string) ([]*csspb.CssProduct, string, error) {
 		resp := &csspb.ListCssProductsResponse{}
 		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("/v1/%v/cssProducts", 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.
 		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
 		headers := gax.BuildHeaders(ctx, hds...)
 		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.GetCssProducts(), 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
 }
	// 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 css

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

	csspb "cloud.google.com/go/shopping/css/apiv1/csspb"
	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/protobuf/encoding/protojson"
	"google.golang.org/protobuf/proto"
	)

	var newCssProductsClientHook clientHook

	// CssProductsCallOptions contains the retry settings for each method of CssProductsClient.
	type CssProductsCallOptions struct {
	GetCssProduct []gax.CallOption
	ListCssProducts []gax.CallOption
	}

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

	func defaultCssProductsCallOptions() *CssProductsCallOptions {
	return &CssProductsCallOptions{
	GetCssProduct: []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,
	})
	}),
	},
	ListCssProducts: []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,
	})
	}),
	},
	}
	}

	func defaultCssProductsRESTCallOptions() *CssProductsCallOptions {
	return &CssProductsCallOptions{
	GetCssProduct: []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)
	}),
	},
	ListCssProducts: []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)
	}),
	},
	}
	}

	// internalCssProductsClient is an interface that defines the methods available from CSS API.
	type internalCssProductsClient interface {
	Close() error
	setGoogleClientInfo(...string)
	Connection() *grpc.ClientConn
	GetCssProduct(context.Context, csspb.GetCssProductRequest, ...gax.CallOption) (csspb.CssProduct, error)
	ListCssProducts(context.Context, csspb.ListCssProductsRequest, ...gax.CallOption) CssProductIterator
	}

	// CssProductsClient is a client for interacting with CSS API.
	// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
	//
	// Service for doing get and list on Css Products(a.k.a Aggregate Offers
	// internally).
	type CssProductsClient struct {
	// The internal transport-dependent client.
	internalClient internalCssProductsClient

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

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

	// GetCssProduct retrieves the processed CSS Product from your CSS Center account. After
	// inserting, updating, or deleting a product input, it may take several
	// minutes before the updated final product can be retrieved.
	func (c CssProductsClient) GetCssProduct(ctx context.Context, req csspb.GetCssProductRequest, opts ...gax.CallOption) (*csspb.CssProduct, error) {
	return c.internalClient.GetCssProduct(ctx, req, opts...)
	}

	// ListCssProducts lists the processed CSS Products in your CSS Center account. The response
	// might contain fewer items than specified by pageSize. Rely on pageToken to
	// determine if there are more items to be requested.
	//
	// After inserting, updating, or deleting a CSS product input, it may
	// take several minutes before the updated processed CSS product can be
	// retrieved.
	func (c CssProductsClient) ListCssProducts(ctx context.Context, req csspb.ListCssProductsRequest, opts ...gax.CallOption) *CssProductIterator {
	return c.internalClient.ListCssProducts(ctx, req, opts...)
	}

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

	// Points back to the CallOptions field of the containing CssProductsClient
	CallOptions **CssProductsCallOptions

	// The gRPC API client.
	cssProductsClient csspb.CssProductsServiceClient

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

	// NewCssProductsClient creates a new css products service client based on gRPC.
	// The returned client must be Closed when it is done being used to clean up its underlying connections.
	//
	// Service for doing get and list on Css Products(a.k.a Aggregate Offers
	// internally).
	func NewCssProductsClient(ctx context.Context, opts ...option.ClientOption) (*CssProductsClient, error) {
	clientOpts := defaultCssProductsGRPCClientOptions()
	if newCssProductsClientHook != nil {
	hookOpts, err := newCssProductsClientHook(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 := CssProductsClient{CallOptions: defaultCssProductsCallOptions()}

	c := &cssProductsGRPCClient{
	connPool: connPool,
	cssProductsClient: csspb.NewCssProductsServiceClient(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 cssProductsGRPCClient) 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 *cssProductsGRPCClient) 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 *cssProductsGRPCClient) Close() error {
	return c.connPool.Close()
	}

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

	// The http client.
	httpClient *http.Client

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

	// Points back to the CallOptions field of the containing CssProductsClient
	CallOptions **CssProductsCallOptions
	}

	// NewCssProductsRESTClient creates a new css products service rest client.
	//
	// Service for doing get and list on Css Products(a.k.a Aggregate Offers
	// internally).
	func NewCssProductsRESTClient(ctx context.Context, opts ...option.ClientOption) (*CssProductsClient, error) {
	clientOpts := append(defaultCssProductsRESTClientOptions(), opts...)
	httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
	if err != nil {
	return nil, err
	}

	callOpts := defaultCssProductsRESTCallOptions()
	c := &cssProductsRESTClient{
	endpoint: endpoint,
	httpClient: httpClient,
	CallOptions: &callOpts,
	}
	c.setGoogleClientInfo()

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

	func defaultCssProductsRESTClientOptions() []option.ClientOption {
	return []option.ClientOption{
	internaloption.WithDefaultEndpoint("https://css.googleapis.com"),
	internaloption.WithDefaultEndpointTemplate("https://css.UNIVERSE_DOMAIN"),
	internaloption.WithDefaultMTLSEndpoint("https://css.mtls.googleapis.com"),
	internaloption.WithDefaultUniverseDomain("googleapis.com"),
	internaloption.WithDefaultAudience("https://css.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 *cssProductsRESTClient) 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 *cssProductsRESTClient) 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 cssProductsRESTClient) Connection() grpc.ClientConn {
	return nil
	}
	func (c cssProductsGRPCClient) GetCssProduct(ctx context.Context, req csspb.GetCssProductRequest, opts ...gax.CallOption) (*csspb.CssProduct, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((c.CallOptions).GetCssProduct[0:len((c.CallOptions).GetCssProduct):len((*c.CallOptions).GetCssProduct)], opts...)
	var resp *csspb.CssProduct
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	var err error
	resp, err = c.cssProductsClient.GetCssProduct(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	if err != nil {
	return nil, err
	}
	return resp, nil
	}

	func (c cssProductsGRPCClient) ListCssProducts(ctx context.Context, req csspb.ListCssProductsRequest, opts ...gax.CallOption) *CssProductIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((c.CallOptions).ListCssProducts[0:len((c.CallOptions).ListCssProducts):len((*c.CallOptions).ListCssProducts)], opts...)
	it := &CssProductIterator{}
	req = proto.Clone(req).(*csspb.ListCssProductsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*csspb.CssProduct, string, error) {
	resp := &csspb.ListCssProductsResponse{}
	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.cssProductsClient.ListCssProducts(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	if err != nil {
	return nil, "", err
	}

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

	// GetCssProduct retrieves the processed CSS Product from your CSS Center account. After
	// inserting, updating, or deleting a product input, it may take several
	// minutes before the updated final product can be retrieved.
	func (c cssProductsRESTClient) GetCssProduct(ctx context.Context, req csspb.GetCssProductRequest, opts ...gax.CallOption) (*csspb.CssProduct, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
	return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1/%v", req.GetName())

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

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((c.CallOptions).GetCssProduct[0:len((c.CallOptions).GetCssProduct):len((*c.CallOptions).GetCssProduct)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &csspb.CssProduct{}
	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 = 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
	}

	// ListCssProducts lists the processed CSS Products in your CSS Center account. The response
	// might contain fewer items than specified by pageSize. Rely on pageToken to
	// determine if there are more items to be requested.
	//
	// After inserting, updating, or deleting a CSS product input, it may
	// take several minutes before the updated processed CSS product can be
	// retrieved.
	func (c cssProductsRESTClient) ListCssProducts(ctx context.Context, req csspb.ListCssProductsRequest, opts ...gax.CallOption) *CssProductIterator {
	it := &CssProductIterator{}
	req = proto.Clone(req).(*csspb.ListCssProductsRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*csspb.CssProduct, string, error) {
	resp := &csspb.ListCssProductsResponse{}
	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("/v1/%v/cssProducts", 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.
	hds := append(c.xGoogHeaders, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	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.GetCssProducts(), 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
	}