/*!
 * Copyright 2015 Google Inc. All Rights Reserved.
 *
 * 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
 *
 *      http://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.
 */
import * as gax from 'google-gax';
import * as middleware from './middleware';
import { detectServiceContext } from './utils/metadata';
import { CloudLoggingHttpRequest as HttpRequest } from './utils/http-request';
export { middleware };
export { HttpRequest };
export { detectServiceContext };
declare const v2: any;
import { Entry, LogEntry } from './entry';
import { MonitoredResource, Severity, SeverityNames, formatLogName, assignSeverityToEntries } from './utils/log-common';
import { Log, GetEntriesRequest, TailEntriesRequest, LogOptions } from './log';
import { LogSync, LogSyncOptions } from './log-sync';
import { Sink } from './sink';
import { Duplex, Writable } from 'stream';
import { google } from '../protos/protos';
export interface LoggingOptions extends gax.GrpcClientOptions {
    autoRetry?: boolean;
    maxRetries?: number;
    apiEndpoint?: string;
}
export interface DeleteCallback {
    (error?: Error | null, response?: google.protobuf.Empty): void;
}
export type DeleteResponse = google.protobuf.Empty;
export type LogSink = google.logging.v2.ILogSink;
export interface AbortableDuplex extends Duplex {
    abort(): void;
}
export interface CreateSinkRequest {
    destination: any;
    filter?: string;
    includeChildren?: boolean;
    name?: string;
    outputVersionFormat?: google.logging.v2.LogSink.VersionFormat;
    uniqueWriterIdentity?: string | boolean;
    gaxOptions?: gax.CallOptions;
}
export interface CreateSinkCallback {
    (err: Error | null, sink?: Sink | null, resp?: LogSink): void;
}
export type GetEntriesResponse = [
    Entry[],
    google.logging.v2.IListLogEntriesRequest,
    google.logging.v2.IListLogEntriesResponse
];
export interface GetEntriesCallback {
    (err: Error | null, entries?: Entry[], request?: google.logging.v2.IListLogEntriesRequest, apiResponse?: google.logging.v2.IListLogEntriesResponse): void;
}
export interface TailEntriesResponse {
    entries: Entry[];
    suppressionInfo: google.logging.v2.TailLogEntriesResponse.SuppressionInfo;
}
export interface GetLogsRequest {
    autoPaginate?: boolean;
    gaxOptions?: gax.CallOptions;
    maxApiCalls?: number;
    maxResults?: number;
    pageSize?: number;
    pageToken?: string;
}
export type GetLogsResponse = [
    Sink[],
    google.logging.v2.IListLogsRequest,
    google.logging.v2.IListLogsResponse
];
export interface GetLogsCallback {
    (err: Error | null, entries?: Sink[], request?: google.logging.v2.IListLogsRequest, apiResponse?: google.logging.v2.IListLogsResponse): void;
}
export interface GetSinksRequest {
    autoPaginate?: boolean;
    gaxOptions?: gax.CallOptions;
    maxApiCalls?: number;
    maxResults?: number;
    pageSize?: number;
    pageToken?: string;
}
export type GetSinksResponse = [
    Sink[],
    google.logging.v2.IListSinksRequest,
    google.logging.v2.IListSinksResponse
];
export interface GetSinksCallback {
    (err: Error | null, entries?: Sink[], request?: google.logging.v2.IListSinksRequest, apiResponse?: google.logging.v2.IListSinksResponse): void;
}
export type Client = string;
export interface RequestConfig {
    client: Client;
    method: string;
    reqOpts?: object;
    gaxOpts?: gax.CallOptions;
}
export interface RequestCallback<TResponse> {
    (err: Error | null, res?: TResponse): void;
}
/**
 * For logged errors, one can provide a the service context. For more
 * information see [this guide]{@link
 * https://cloud.google.com/error-reporting/docs/formatting-error-messages}
 * and the [official documentation]{@link
 * https://cloud.google.com/error-reporting/reference/rest/v1beta1/ServiceContext}.
 */
export interface ServiceContext {
    /**
     * An identifier of the service, such as the name of the executable, job, or
     * Google App Engine service name.
     */
    service?: string;
    /**
     * Represents the version of the service.
     */
    version?: string;
}
/**
 * @typedef {object} ClientConfig
 * @property {string} [projectId] The project ID from the Google Developer's
 *     Console, e.g. 'grape-spaceship-123'. We will also check the environment
 *     variable `GCLOUD_PROJECT` for your project ID. If your app is running in
 *     an environment which supports {@link
 * https://cloud.google.com/docs/authentication/production#providing_credentials_to_your_application
 * Application Default Credentials}, your project ID will be detected
 * automatically.
 * @property {string} [keyFilename] Full path to the a .json, .pem, or .p12 key
 *     downloaded from the Google Developers Console. If you provide a path to a
 *     JSON file, the `projectId` option above is not necessary. NOTE: .pem and
 *     .p12 require you to specify the `email` option as well.
 * @property {string} [email] Account email address. Required when using a .pem
 *     or .p12 keyFilename.
 * @property {object} [credentials] Credentials object.
 * @property {string} [credentials.client_email]
 * @property {string} [credentials.private_key]
 * @property {boolean} [autoRetry=true] Automatically retry requests if the
 *     response is related to rate limits or certain intermittent server errors.
 *     We will exponentially backoff subsequent requests by default.
 * @property {number} [maxRetries=3] Maximum number of automatic retries
 *     attempted before returning the error.
 * @property {Constructor} [promise] Custom promise module to use instead of
 *     native Promises.
 */
/**
 * {@link https://cloud.google.com/logging/docs| Cloud Logging} allows you to
 * store, search, analyze, monitor, and alert on log data and events from Google
 * Cloud Platform and Amazon Web Services (AWS).
 *
 * @class
 *
 * See {@link https://cloud.google.com/logging/docs| What is Cloud Logging?}
 *
 * See {@link https://cloud.google.com/logging/docs/api| Introduction to the Cloud Logging API}
 *
 * See {@link https://www.npmjs.com/package/@google-cloud/logging-bunyan| Logging to Google Cloud from Bunyan}
 *
 * See {@link https://www.npmjs.com/package/@google-cloud/logging-winston| Logging to Google Cloud from Winston}
 *
 * @param {ClientConfig} [options] Configuration options.
 *
 * @example Import the client library
 * ```
 * const {Logging} = require('@google-cloud/logging');
 *
 * ```
 * @example Create a client that uses <a href="https://cloud.google.com/docs/authentication/production#providing_credentials_to_your_application">Application Default Credentials (ADC)</a>:
 * ```
 * const logging = new Logging();
 *
 * ```
 * @example Create a client with <a href="https://cloud.google.com/docs/authentication/production#obtaining_and_providing_service_account_credentials_manually">explicitcredentials</a>:
 * ```
 * const logging = new Logging({ projectId:
 *  'your-project-id', keyFilename: '/path/to/keyfile.json'
 * });
 *
 * ```
 * @example <caption>include:samples/quickstart.js</caption>
 * region_tag:logging_quickstart
 * Full quickstart example:
 */
declare class Logging {
    api: {
        [key: string]: gax.ClientStub;
    };
    auth: gax.GoogleAuth;
    options: LoggingOptions;
    projectId: string;
    detectedResource?: object;
    configService?: typeof v2.ConfigServiceV2Client;
    loggingService?: typeof v2.LoggingServiceV2Client;
    constructor(options?: LoggingOptions, gaxInstance?: typeof gax);
    /**
     * Config to set for the sink. Not all available options are listed here, see
     * the [Sink
     * resource](https://cloud.google.com/logging/docs/reference/v2/rest/v2/projects.sinks#LogSink)
     * definition for full details.
     *
     * @typedef {object} CreateSinkRequest
     * @property {object} [gaxOptions] Request configuration options, outlined
     *     here: https://googleapis.github.io/gax-nodejs/global.html#CallOptions.
     * @property {Bucket|Dataset|Topic} [destination] The destination. The proper ACL
     *     scopes will be granted to the provided destination. Can be one of:
     *     {@link https://googleapis.dev/nodejs/storage/latest/ Bucket},
     *     {@link https://googleapis.dev/nodejs/bigquery/latest/ Dataset}, or
     *     {@link https://googleapis.dev/nodejs/pubsub/latest/ Topic}
     * @property {string} [filter] An advanced logs filter. Only log entries
     *     matching the filter are written.
     * @property {string|boolean} [uniqueWriterIdentity] Determines the kind of IAM
     *     identity returned as `writerIdentity` in the new sink. See {@link https://cloud.google.com/logging/docs/reference/v2/rest/v2/projects.sinks/create#query-parameters}.
     */
    /**
     * @typedef {array} CreateSinkResponse
     * @property {Sink} 0 The new {@link Sink}.
     * @property {object} 1 The full API response.
     */
    /**
     * @callback CreateSinkCallback
     * @param {?Error} err Request error, if any.
     * @param {Sink} sink The new {@link Sink}.
     * @param {object} apiResponse The full API response.
     */
    createSink(name: string, config: CreateSinkRequest): Promise<[Sink, LogSink]>;
    createSink(name: string, config: CreateSinkRequest, callback: CreateSinkCallback): void;
    /**
     * Create an entry object.
     *
     * Using this method will not itself make any API requests. You will use
     * the object returned in other API calls, such as
     * {@link Log#write}.
     *
     * Note, {@link https://cloud.google.com/logging/quotas|Cloud Logging Quotas and limits}
     * dictates that the maximum log entry size, including all
     * [LogEntry Resource properties]{@link https://cloud.google.com/logging/docs/reference/v2/rest/v2/LogEntry},
     * cannot exceed _approximately_ 256 KB.
     *
     * See {@link https://cloud.google.com/logging/docs/reference/v2/rest/v2/LogEntry|LogEntry JSON representation}
     *
     * @param {?object|?string} [resource] See a
     *     [Monitored
     * Resource](https://cloud.google.com/logging/docs/reference/v2/rest/v2/MonitoredResource).
     * @param {object|string} data The data to use as the value for this log
     *     entry.
     * @returns {Entry}
     *
     * @example
     * ```
     * const {Logging} = require('@google-cloud/logging');
     * const logging = new Logging();
     *
     * const resource = {
     *   type: 'gce_instance',
     *   labels: {
     *     zone: 'global',
     *     instance_id: '3'
     *   }
     * };
     *
     * const entry = logging.entry(resource, {
     *   delegate: 'my_username'
     * });
     *
     * entry.toJSON();
     * // {
     * //   resource: {
     * //     type: 'gce_instance',
     * //     labels: {
     * //       zone: 'global',
     * //       instance_id: '3'
     * //     }
     * //   },
     * //   jsonPayload: {
     * //     delegate: 'my_username'
     * //   }
     * // }
     * ```
     */
    entry(resource?: LogEntry, data?: {} | string): Entry;
    /**
     * Query object for listing entries.
     *
     * @typedef {object} GetEntriesRequest
     * @property {boolean} [autoPaginate=true] Have pagination handled
     *     automatically.
     * @property {string} [filter] An
     *     [advanced logs
     * filter](https://cloud.google.com/logging/docs/view/advanced_filters). An
     * empty filter matches all log entries.
     * @property {object} [gaxOptions] Request configuration options, outlined
     *     here: https://googleapis.github.io/gax-nodejs/global.html#CallOptions.
     * @property {string} [log] A name of the log specifying to pnly return
     *     entries from this log.
     * @property {number} [maxApiCalls] Maximum number of API calls to make.
     * @property {number} [maxResults] Maximum number of items plus prefixes to
     *     return.
     * @property {string} [orderBy] How the results should be sorted,
     *     `timestamp asc` (oldest first) and `timestamp desc` (newest first,
     *     **default**).
     * @property {number} [pageSize] Maximum number of logs to return.
     * @property {string} [pageToken] A previously-returned page token
     *     representing part of the larger set of results to view.
     */
    /**
     * @typedef {array} GetEntriesResponse
     * @property {Entry[]} 0 Array of {@link Entry} instances.
     * @property {object} 1 The full API request.
     * @property {object} 2 The full API response.
     */
    /**
     * @callback GetEntriesCallback
     * @param {?Error} err Request error, if any.
     * @param {Entry[]} entries Array of {@link Entry} instances.
     * @param {object} apiResponse The full API response.
     */
    /**
     * List the entries in your logs.
     *
     * See {@link https://cloud.google.com/logging/docs/reference/v2/rest/v2/entries/list|entries.list API Documentation}
     *
     * @param {GetEntriesRequest} [query] Query object for listing entries.
     * @param {GetEntriesCallback} [callback] Callback function.
     * @returns {Promise<GetEntriesResponse>}
     *
     * @example
     * ```
     * const {Logging} = require('@google-cloud/logging');
     * const logging = new Logging();
     *
     * logging.getEntries((err, entries) => {
     *   // `entries` is an array of Cloud Logging entry objects.
     *   // See the `data` property to read the data from the entry.
     * });
     *
     * //-
     * // To control how many API requests are made and page through the results
     * // manually, set `autoPaginate` to `false`.
     * //-
     * function callback(err, entries, nextQuery, apiResponse) {
     *   if (nextQuery) {
     *     // More results exist.
     *     logging.getEntries(nextQuery, callback);
     *   }
     * }
     *
     * logging.getEntries({
     *   autoPaginate: false
     * }, callback);
     *
     * //-
     * // If the callback is omitted, we'll return a Promise.
     * //-
     * logging.getEntries().then(data => {
     *   const entries = data[0];
     * });
     *
     * ```
     * @example <caption>include:samples/logs.js</caption>
     * region_tag:logging_list_log_entries
     * Another example:
     *
     * @example <caption>include:samples/logs.js</caption>
     * region_tag:logging_list_log_entries_advanced
     * Another example:
     */
    getEntries(options?: GetEntriesRequest): Promise<GetEntriesResponse>;
    getEntries(callback: GetEntriesCallback): void;
    getEntries(options: GetEntriesRequest, callback: GetEntriesCallback): void;
    /**
     * List the {@link Entry} objects in your logs as a readable object
     * stream.
     *
     * @method Logging#getEntriesStream
     * @param {GetEntriesRequest} [query] Query object for listing entries.
     * @returns {ReadableStream} A readable stream that emits {@link Entry}
     *     instances.
     *
     * @example
     * ```
     * const {Logging} = require('@google-cloud/logging');
     * const logging = new Logging();
     *
     * logging.getEntriesStream()
     *   .on('error', console.error)
     *   .on('data', entry => {
     *     // `entry` is a Cloud Logging entry object.
     *     // See the `data` property to read the data from the entry.
     *   })
     *   .on('end', function() {
     *     // All entries retrieved.
     *   });
     *
     * //-
     * // If you anticipate many results, you can end a stream early to prevent
     * // unnecessary processing and API requests.
     * //-
     * logging.getEntriesStream()
     *   .on('data', function(entry) {
     *     this.end();
     *   });
     * ```
     */
    getEntriesStream(options?: GetEntriesRequest): Duplex;
    /**
     * Query object for streaming entries.
     *
     * @typedef {object} TailEntriesRequest
     * @property {Array.<string>|string} [resourceNames] Names of project
     *     resources to stream logs out of.
     * @property {string} [filter] An
     *     [advanced logs
     * filter](https://cloud.google.com/logging/docs/view/advanced_filters). An
     * empty filter matches all log entries.
     * @property {number} [bufferWindow=2] A setting to balance the tradeoff
     *     between viewing the log entries as they are being written and viewing
     *     them in ascending order.
     * @property {string} [log] A name of the log specifying to only return
     *     entries from this log.
     * @property {object} [gaxOptions] Request configuration options, outlined
     *     here: https://googleapis.github.io/gax-nodejs/global.html#CallOptions.
     */
    /**
     * Streaming read of live logs as log entries are ingested. Until the stream
     * is terminated, it will continue reading logs.
     *
     * @method Logging#tailEntries
     * @param {TailEntriesRequest} [query] Query object for tailing entries.
     * @returns {DuplexStream} A duplex stream that emits TailEntriesResponses
     * containing an array of {@link Entry} instances.
     *
     * @example
     * ```
     * const {Logging} = require('@google-cloud/logging');
     * const logging = new Logging();
     *
     * logging.tailEntries()
     *   .on('error', console.error)
     *   .on('data', resp => {
     *     console.log(resp.entries);
     *     console.log(resp.suppressionInfo);
     *   })
     *   .on('end', function() {
     *     // All entries retrieved.
     *   });
     *
     * //-
     * // If you anticipate many results, you can end a stream early to prevent
     * // unnecessary processing and API requests.
     * //-
     * logging.getEntriesStream()
     *   .on('data', function(entry) {
     *     this.end();
     *   });
     * ```
     */
    tailEntries(options?: TailEntriesRequest): Duplex;
    /**
     * Query object for listing entries.
     *
     * @typedef {object} GetLogsRequest
     * @property {boolean} [autoPaginate=true] Have pagination handled
     *     automatically.
     * @property {object} [gaxOptions] Request configuration options, outlined
     *     here: https://googleapis.github.io/gax-nodejs/global.html#CallOptions.
     * @property {number} [maxApiCalls] Maximum number of API calls to make.
     * @property {number} [maxResults] Maximum number of items plus prefixes to
     *     return.
     * @property {number} [pageSize] Maximum number of logs to return.
     * @property {string} [pageToken] A previously-returned page token
     *     representing part of the larger set of results to view.
     */
    /**
     * @typedef {array} GetLogsResponse
     * @property {Log[]} 0 Array of {@link Log} instances.
     * @property {object} 1 The full API request.
     * @property {object} 2 The full API response.
     */
    /**
     * @callback GetLogsCallback
     * @param {?Error} err Request error, if any.
     * @param {Log[]} logs Array of {@link Log} instances.
     * @param {object} apiResponse The full API response.
     */
    /**
     * List the entries in your logs.
     *
     * See {@link https://cloud.google.com/logging/docs/reference/v2/rest/v2/logs/list|logs.list API Documentation}
     *
     * @param {GetLogsRequest} [query] Query object for listing entries.
     * @param {GetLogsCallback} [callback] Callback function.
     * @returns {Promise<GetLogsResponse>}
     *
     * @example
     * ```
     * const {Logging} = require('@google-cloud/logging');
     * const logging = new Logging();
     *
     * logging.getLogs((err, logs) => {
     *   // `logs` is an array of Cloud Logging log objects.
     * });
     *
     * //-
     * // To control how many API requests are made and page through the results
     * // manually, set `autoPaginate` to `false`.
     * //-
     * function callback(err, entries, nextQuery, apiResponse) {
     *   if (nextQuery) {
     *     // More results exist.
     *     logging.getLogs(nextQuery, callback);
     *   }
     * }
     *
     * logging.getLogs({
     *   autoPaginate: false
     * }, callback);
     *
     * //-
     * // If the callback is omitted, we'll return a Promise.
     * //-
     * logging.getLogs().then(data => {
     *   const entries = data[0];
     * });
     *
     * ```
     * @example <caption>include:samples/logs.js</caption>
     * region_tag:logging_list_logs
     * Another example:
     */
    getLogs(options?: GetLogsRequest): Promise<GetLogsResponse>;
    getLogs(callback: GetLogsCallback): void;
    getLogs(options: GetLogsRequest, callback: GetLogsCallback): void;
    /**
     * List the {@link Log} objects in your project as a readable object stream.
     *
     * @method Logging#getLogsStream
     * @param {GetLogsRequest} [query] Query object for listing entries.
     * @returns {ReadableStream} A readable stream that emits {@link Log}
     *     instances.
     *
     * @example
     * ```
     * const {Logging} = require('@google-cloud/logging');
     * const logging = new Logging();
     *
     * logging.getLogsStream()
     *   .on('error', console.error)
     *   .on('data', log => {
     *     // `log` is a Cloud Logging log object.
     *   })
     *   .on('end', function() {
     *     // All logs retrieved.
     *   });
     *
     * //-
     * // If you anticipate many results, you can end a stream early to prevent
     * // unnecessary processing and API requests.
     * //-
     * logging.getLogsStream()
     *   .on('data', log => {
     *     this.end();
     *   });
     * ```
     */
    getLogsStream(options?: GetLogsRequest): Duplex;
    /**
     * Query object for listing sinks.
     *
     * @typedef {object} GetSinksRequest
     * @property {boolean} [autoPaginate=true] Have pagination handled
     *     automatically.
     * @property {object} [gaxOptions] Request configuration options, outlined
     *     here: https://googleapis.github.io/gax-nodejs/global.html#CallOptions.
     * @property {number} [maxApiCalls] Maximum number of API calls to make.
     * @property {number} [maxResults] Maximum number of items plus prefixes to
     *     return.
     * @property {number} [pageSize] Maximum number of logs to return.
     * @property {string} [pageToken] A previously-returned page token
     *     representing part of the larger set of results to view.
     */
    /**
     * @typedef {array} GetSinksResponse
     * @property {Sink[]} 0 Array of {@link Sink} instances.
     * @property {object} 1 The full API response.
     */
    /**
     * @callback GetSinksCallback
     * @param {?Error} err Request error, if any.
     * @param {Sink[]} sinks Array of {@link Sink} instances.
     * @param {object} apiResponse The full API response.
     */
    /**
     * Get the sinks associated with this project.
     *
     * See {@link https://cloud.google.com/logging/docs/reference/v2/rest/v2/projects.sinks/list|projects.sinks.list API Documentation}
     *
     * @param {GetSinksRequest} [query] Query object for listing sinks.
     * @param {GetSinksCallback} [callback] Callback function.
     * @returns {Promise<GetSinksResponse>}
     *
     * @example
     * ```
     * const {Logging} = require('@google-cloud/logging');
     * const logging = new Logging();
     *
     * logging.getSinks((err, sinks) => {
     *   // sinks is an array of Sink objects.
     * });
     *
     * //-
     * // If the callback is omitted, we'll return a Promise.
     * //-
     * logging.getSinks().then(data => {
     *   const sinks = data[0];
     * });
     *
     * ```
     * @example <caption>include:samples/sinks.js</caption>
     * region_tag:logging_list_sinks
     * Another example:
     */
    getSinks(options?: GetSinksRequest): Promise<GetSinksResponse>;
    getSinks(callback: GetSinksCallback): void;
    getSinks(options: GetSinksRequest, callback: GetSinksCallback): void;
    /**
     * Get the {@link Sink} objects associated with this project as a
     * readable object stream.
     *
     * @method Logging#getSinksStream
     * @param {GetSinksRequest} [query] Query object for listing sinks.
     * @returns {ReadableStream} A readable stream that emits {@link Sink}
     *     instances.
     *
     * @example
     * ```
     * const {Logging} = require('@google-cloud/logging');
     * const logging = new Logging();
     *
     * logging.getSinksStream()
     *   .on('error', console.error)
     *   .on('data', sink => {
     *     // `sink` is a Sink object.
     *   })
     *   .on('end', function() {
     *     // All sinks retrieved.
     *   });
     *
     * //-
     * // If you anticipate many results, you can end a stream early to prevent
     * // unnecessary processing and API requests.
     * //-
     * logging.getSinksStream()
     *   .on('data', function(sink) {
     *     this.end();
     *   });
     * ```
     */
    getSinksStream(options: GetSinksRequest): Duplex;
    /**
     * Get a reference to a Cloud Logging log.
     *
     * See {@link https://cloud.google.com/logging/docs/reference/v2/rest/v2/projects.logs|Log Overview}
     *
     * @param {string} name Name of the existing log.
     * @param {object} [options] Configuration object.
     * @param {boolean} [options.removeCircular] Replace circular references in
     *     logged objects with a string value, `[Circular]`. (Default: false)
     * @returns {Log}
     *
     * @example
     * ```
     * const {Logging} = require('@google-cloud/logging');
     * const logging = new Logging();
     * const log = logging.log('my-log');
     * ```
     */
    log(name: string, options?: LogOptions): Log;
    /**
     * Get a reference to a Cloud Logging logSync.
     *
     * @param {string} name Name of the existing log.
     * @param {object} transport An optional write stream.
     * @param {LogSyncOptions} options An optional configuration object.
     * @returns {LogSync}
     *
     * @example
     * ```
     * const {Logging} = require('@google-cloud/logging');
     * const logging = new Logging();
     *
     * // Optional: enrich logs with additional context
     * await logging.setProjectId();
     * await logging.setDetectedResource();
     *
     * // Default transport writes to process.stdout
     * const log = logging.logSync('my-log');
     * ```
     */
    logSync(name: string, transport?: Writable, options?: LogSyncOptions): LogSync;
    /**
     * Get a reference to a Cloud Logging sink.
     *
     * See {@link https://cloud.google.com/logging/docs/reference/v2/rest/v2/projects.sinks|Sink Overview}
     *
     * @param {string} name Name of the existing sink.
     * @returns {Sink}
     *
     * @example
     * ```
     * const {Logging} = require('@google-cloud/logging');
     * const logging = new Logging();
     * const sink = logging.sink('my-sink');
     * ```
     */
    sink(name: string): Sink;
    /**
     * Funnel all API requests through this method, to be sure we have a project
     * ID.
     *
     * @param {object} config Configuration object.
     * @param {object} config.gaxOpts GAX options.
     * @param {function} config.method The gax method to call.
     * @param {object} config.reqOpts Request options.
     * @param {function} [callback] Callback function.
     */
    request<TResponse = any>(config: RequestConfig, callback?: RequestCallback<TResponse>): Duplex;
    /**
     * This method is called when creating a sink with a Bucket destination. The
     * bucket must first grant proper ACL access to the Cloud Logging
     * account.
     *
     * The parameters are the same as what {@link Logging#createSink} accepts.
     *
     * @private
     */
    setAclForBucket_(config: CreateSinkRequest): Promise<void>;
    /**
     * This method is called when creating a sink with a Dataset destination. The
     * dataset must first grant proper ACL access to the Cloud Logging
     * account.
     *
     * The parameters are the same as what {@link Logging#createSink} accepts.
     *
     * @private
     */
    setAclForDataset_(config: CreateSinkRequest): Promise<void>;
    /**
     * This method is called when creating a sink with a Topic destination. The
     * topic must first grant proper ACL access to the Cloud Logging
     * account.
     *
     * The parameters are the same as what {@link Logging#createSink} accepts.
     *
     * @private
     */
    setAclForTopic_(config: CreateSinkRequest): Promise<void>;
    /**
     * setProjectId detects and sets a projectId string on the Logging instance.
     * It can be invoked once to ensure ensuing LogSync entries have a projectID.
     * @param reqOpts
     */
    setProjectId(reqOpts?: {}): Promise<void>;
    /**
     * setResource detects and sets a detectedresource object on the Logging
     * instance. It can be invoked once to ensure ensuing LogSync entries contain
     * resource context.
     */
    setDetectedResource(): Promise<void>;
}
/**
 * {@link Entry} class.
 *
 * @name Logging.Entry
 * @see Entry
 * @type {Constructor}
 */
export { Entry };
/**
 * {@link Log} class.
 *
 * @name Logging.Log
 * @see Log
 * @type {Constructor}
 */
export { Log };
/**
 * {@link Severity} enum.
 */
export { Severity };
export { SeverityNames };
export { assignSeverityToEntries };
export { formatLogName };
/**
 * {@link MonitoredResource} class.
 *
 * @name Logging.MonitoredResource
 * @see MonitoredResource
 * @type {Interface}
 */
export { MonitoredResource };
/**
 * {@link LogSync} class.
 *
 * @name Logging.LogSync
 * @see LogSync
 * @type {Constructor}
 */
export { LogSync };
/**
 * {@link Sink} class.
 *
 * @name Logging.Sink
 * @see Sink
 * @type {Constructor}
 */
export { Sink };
/**
 * The default export of the `@google-cloud/logging` package is the
 * {@link Logging} class.
 *
 * See {@link Logging} and {@link ClientConfig} for client methods and
 * configuration options.
 *
 * @module {Constructor} @google-cloud/logging
 * @alias nodejs-logging
 *
 * @example Install the client library with <a href="https://www.npmjs.com/">npm</a>:
 * ```
 * npm install --save @google-cloud/logging
 *
 * ```
 * @example Import the client library
 * ```
 * const {Logging} = require('@google-cloud/logging');
 *
 * ```
 * @example Create a client that uses <a href="https://cloud.google.com/docs/authentication/production#providing_credentials_to_your_application">Application Default Credentials (ADC)</a>:
 * ```
 * const logging = new Logging();
 *
 * ```
 * @example Create a client with <a href="https://cloud.google.com/docs/authentication/production#obtaining_and_providing_service_account_credentials_manually">explicit credentials</a>:
 * ```
 * const logging = new Logging({ projectId: 'your-project-id', keyFilename: '/path/to/keyfile.json'});
 *
 * ```
 * @example <caption>include:samples/quickstart.js</caption>
 * region_tag:logging_quickstart
 * Full quickstart example:
 */
export { Logging };
import * as protos from '../protos/protos';
export { protos };
export { v2 };
export * from '@opentelemetry/api';