func (c *ConfigClient) GetExclusion(ctx context.Context, req *loggingpb.GetExclusionRequest, opts ...gax.CallOption) (*loggingpb.LogExclusion, error) {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append(c.CallOptions.GetExclusion[0:len(c.CallOptions.GetExclusion):len(c.CallOptions.GetExclusion)], opts...)
	var resp *loggingpb.LogExclusion
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.configClient.GetExclusion(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}
GetExclusion gets the description of an exclusion.
package logging
import (
	"context"
	"fmt"
	"math"
	"net/url"
	"time"
	"github.com/golang/protobuf/proto"
	gax "github.com/googleapis/gax-go/v2"
	"google.golang.org/api/iterator"
	"google.golang.org/api/option"
	"google.golang.org/api/transport"
	loggingpb "google.golang.org/genproto/googleapis/logging/v2"
	"google.golang.org/grpc"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/metadata"
)
type ConfigCallOptions struct {
	ListSinks       []gax.CallOption
	GetSink         []gax.CallOption
	CreateSink      []gax.CallOption
	UpdateSink      []gax.CallOption
	DeleteSink      []gax.CallOption
	ListExclusions  []gax.CallOption
	GetExclusion    []gax.CallOption
	CreateExclusion []gax.CallOption
	UpdateExclusion []gax.CallOption
	DeleteExclusion []gax.CallOption
}
func defaultConfigClientOptions() []option.ClientOption {
	return []option.ClientOption{
		option.WithEndpoint("logging.googleapis.com:443"),
		option.WithScopes(DefaultAuthScopes()...),
	}
}
func defaultConfigCallOptions() *ConfigCallOptions {
	retry := map[[2]string][]gax.CallOption{
		{"default", "idempotent"}: {
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Internal,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.3,
				})
			}),
		},
	}
	return &ConfigCallOptions{
		ListSinks:       retry[[2]string{"default", "idempotent"}],
		GetSink:         retry[[2]string{"default", "idempotent"}],
		CreateSink:      retry[[2]string{"default", "non_idempotent"}],
		UpdateSink:      retry[[2]string{"default", "idempotent"}],
		DeleteSink:      retry[[2]string{"default", "idempotent"}],
		ListExclusions:  retry[[2]string{"default", "idempotent"}],
		GetExclusion:    retry[[2]string{"default", "idempotent"}],
		CreateExclusion: retry[[2]string{"default", "non_idempotent"}],
		UpdateExclusion: retry[[2]string{"default", "non_idempotent"}],
		DeleteExclusion: retry[[2]string{"default", "idempotent"}],
	}
}
type ConfigClient struct {
	conn *grpc.ClientConn
	configClient loggingpb.ConfigServiceV2Client
	CallOptions *ConfigCallOptions
	xGoogMetadata metadata.MD
}
func NewConfigClient(ctx context.Context, opts ...option.ClientOption) (*ConfigClient, error) {
	conn, err := transport.DialGRPC(ctx, append(defaultConfigClientOptions(), opts...)...)
	if err != nil {
		return nil, err
	}
	c := &ConfigClient{
		conn:        conn,
		CallOptions: defaultConfigCallOptions(),
		configClient: loggingpb.NewConfigServiceV2Client(conn),
	}
	c.SetGoogleClientInfo()
	return c, nil
}
func (c *ConfigClient) Connection() *grpc.ClientConn {
	return c.conn
}
func (c *ConfigClient) Close() error {
	return c.conn.Close()
}
func (c *ConfigClient) SetGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", versionGo()}, keyval...)
	kv = append(kv, "gapic", versionClient, "gax", gax.Version, "grpc", grpc.Version)
	c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
}
func (c *ConfigClient) ListSinks(ctx context.Context, req *loggingpb.ListSinksRequest, opts ...gax.CallOption) *LogSinkIterator {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append(c.CallOptions.ListSinks[0:len(c.CallOptions.ListSinks):len(c.CallOptions.ListSinks)], opts...)
	it := &LogSinkIterator{}
	req = proto.Clone(req).(*loggingpb.ListSinksRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*loggingpb.LogSink, string, error) {
		var resp *loggingpb.ListSinksResponse
		req.PageToken = pageToken
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.configClient.ListSinks(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}
		return resp.Sinks, resp.NextPageToken, 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.PageSize)
	it.pageInfo.Token = req.PageToken
	return it
}
func (c *ConfigClient) GetSink(ctx context.Context, req *loggingpb.GetSinkRequest, opts ...gax.CallOption) (*loggingpb.LogSink, error) {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "sink_name", url.QueryEscape(req.GetSinkName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append(c.CallOptions.GetSink[0:len(c.CallOptions.GetSink):len(c.CallOptions.GetSink)], opts...)
	var resp *loggingpb.LogSink
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.configClient.GetSink(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}
func (c *ConfigClient) CreateSink(ctx context.Context, req *loggingpb.CreateSinkRequest, opts ...gax.CallOption) (*loggingpb.LogSink, error) {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append(c.CallOptions.CreateSink[0:len(c.CallOptions.CreateSink):len(c.CallOptions.CreateSink)], opts...)
	var resp *loggingpb.LogSink
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.configClient.CreateSink(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}
func (c *ConfigClient) UpdateSink(ctx context.Context, req *loggingpb.UpdateSinkRequest, opts ...gax.CallOption) (*loggingpb.LogSink, error) {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "sink_name", url.QueryEscape(req.GetSinkName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append(c.CallOptions.UpdateSink[0:len(c.CallOptions.UpdateSink):len(c.CallOptions.UpdateSink)], opts...)
	var resp *loggingpb.LogSink
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.configClient.UpdateSink(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}
func (c *ConfigClient) DeleteSink(ctx context.Context, req *loggingpb.DeleteSinkRequest, opts ...gax.CallOption) error {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "sink_name", url.QueryEscape(req.GetSinkName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append(c.CallOptions.DeleteSink[0:len(c.CallOptions.DeleteSink):len(c.CallOptions.DeleteSink)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		_, err = c.configClient.DeleteSink(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	return err
}
func (c *ConfigClient) ListExclusions(ctx context.Context, req *loggingpb.ListExclusionsRequest, opts ...gax.CallOption) *LogExclusionIterator {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append(c.CallOptions.ListExclusions[0:len(c.CallOptions.ListExclusions):len(c.CallOptions.ListExclusions)], opts...)
	it := &LogExclusionIterator{}
	req = proto.Clone(req).(*loggingpb.ListExclusionsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*loggingpb.LogExclusion, string, error) {
		var resp *loggingpb.ListExclusionsResponse
		req.PageToken = pageToken
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.configClient.ListExclusions(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}
		return resp.Exclusions, resp.NextPageToken, 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.PageSize)
	it.pageInfo.Token = req.PageToken
	return it
}