How to use the @google-cloud/common.GrpcService function in @google-cloud/common

var nodeutil = require('util');
var format = require('string-format-obj');
var extend = require('extend');
var PKG = require('../package.json');

/**
 * @type {module:bigtable/table}
 * @private
 */
var Table = require('./table.js');

/**
 * @type {module:common/grpcService}
 * @private
 */
var GrpcService = common.GrpcService;

/**
 * @type {module:common/util}
 * @private
 */
var util = common.util;

/**
 * Interact with
 * [Google Cloud Bigtable](https://cloud.google.com/bigtable/).
 *
 * @constructor
 * @alias module:bigtable
 *
 * @classdesc
 * The `gcloud.bigtable` object allows you interact with Google Cloud Bigtable.

* @type {module:bigquery/dataset}
 * @private
 */
var Dataset = require('@google-cloud/bigquery').Dataset;

/**
 * @type {module:logging/entry}
 * @private
 */
var Entry = require('./entry.js');

/**
 * @type {module:common/grpc-service}
 * @private
 */
var GrpcService = common.GrpcService;

/**
 * @type {module:logging/log}
 * @private
 */
var Log = require('./log.js');

/**
 * @type {module:logging/sink}
 * @private
 */
var Sink = require('./sink.js');

/**
 * @type {module:common/stream-router}
 * @private

/*!
 * @module pubsub/iam
 */

'use strict';

var arrify = require('arrify');
var common = require('@google-cloud/common');
var is = require('is');
var nodeutil = require('util');

/**
 * @type {module:common/grpc-service}
 * @private
 */
var GrpcService = common.GrpcService;

/*! Developer Documentation
 *
 * @param {module:pubsub} pubsub - PubSub Object.
 * @param {object} config - Configuration object.
 * @param {string} config.baseUrl - The base URL to apply to API requests.
 * @param {string} config.id - The name of the topic or subscription.
 */
/**
 * [IAM (Identity and Access Management)](https://cloud.google.com/pubsub/access_control)
 * allows you to set permissions on invidual resources and offers a wider range
 * of roles: editor, owner, publisher, subscriber, and viewer. This gives you
 * greater flexibility and allows you to set more fine-grained access control.
 *
 * For example:
 *   * Grant access on a per-topic or per-subscription basis, rather than for

var nodeutil = require('util');
var prop = require('propprop');
var request = require('request');
var PKG = require('../package.json');

/**
 * @type {module:storage/file}
 * @private
 */
var File = require('@google-cloud/storage').File;

/**
 * @type {module:common/grpc-service}
 * @private
 */
var GrpcService = common.GrpcService;

/**
 * @type {module:common/service}
 * @private
 */
var Service = common.Service;

/**
 * @type {module:common/util}
 * @private
 */
var util = common.util;

var VERY_UNLIKELY = 0;
var UNLIKELY = 1;
var POSSIBLE = 2;

/*!
 * @module logging/entry
 */

'use strict';

var common = require('@google-cloud/common');
var extend = require('extend');
var is = require('is');

/**
 * @type {module:common/grpc-service}
 * @private
 */
var GrpcService = common.GrpcService;

/**
 * Create an entry object to define new data to insert into a log.
 *
 * @resource [LogEntry JSON representation]{@link https://cloud.google.com/logging/docs/api/ref_v2beta1/rest/v2beta1/LogEntry}
 *
 * @alias module:logging/entry
 * @constructor
 *
 * @param {object=|string=} resource - See a
 *     [Monitored Resource](https://cloud.google.com/logging/docs/api/ref_v2beta1/rest/v2beta1/MonitoredResource).
 * @param {object|string} data - The data to use as the value for this log
 *     entry.
 *
 *     If providing an object, these value types are supported:
 *     - `String`