@google-cloud/datastore/build/src/v1/datastore_client.d.ts

import type * as gax from 'google-gax';
import type { Callback, CallOptions, Descriptors, ClientOptions } from 'google-gax';
import * as protos from '../../protos/protos';
/**
 *  Each RPC normalizes the partition IDs of the keys in its input entities,
 *  and always returns entities with keys with normalized partition IDs.
 *  This applies to all keys and entities, including those in values, except keys
 *  with both an empty path and an empty or unset partition ID. Normalization of
 *  input keys sets the project ID (if not already set) to the project ID from
 *  the request.
 *
 * @class
 * @memberof v1
 */
export declare class DatastoreClient {
    private _terminated;
    private _opts;
    private _providedCustomServicePath;
    private _gaxModule;
    private _gaxGrpc;
    private _protos;
    private _defaults;
    auth: gax.GoogleAuth;
    descriptors: Descriptors;
    warn: (code: string, message: string, warnType?: string) => void;
    innerApiCalls: {
        [name: string]: Function;
    };
    operationsClient: gax.OperationsClient;
    datastoreStub?: Promise<{
        [name: string]: Function;
    }>;
    /**
     * Construct an instance of DatastoreClient.
     *
     * @param {object} [options] - The configuration object.
     * The options accepted by the constructor are described in detail
     * in [this document](https://github.com/googleapis/gax-nodejs/blob/main/client-libraries.md#creating-the-client-instance).
     * The common options are:
     * @param {object} [options.credentials] - Credentials object.
     * @param {string} [options.credentials.client_email]
     * @param {string} [options.credentials.private_key]
     * @param {string} [options.email] - Account email address. Required when
     *     using a .pem or .p12 keyFilename.
     * @param {string} [options.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 below is not necessary.
     *     NOTE: .pem and .p12 require you to specify options.email as well.
     * @param {number} [options.port] - The port on which to connect to
     *     the remote host.
     * @param {string} [options.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://developers.google.com/identity/protocols/application-default-credentials Application Default Credentials},
     *     your project ID will be detected automatically.
     * @param {string} [options.apiEndpoint] - The domain name of the
     *     API remote host.
     * @param {gax.ClientConfig} [options.clientConfig] - Client configuration override.
     *     Follows the structure of {@link gapicConfig}.
     * @param {boolean | "rest"} [options.fallback] - Use HTTP fallback mode.
     *     Pass "rest" to use HTTP/1.1 REST API instead of gRPC.
     *     For more information, please check the
     *     {@link https://github.com/googleapis/gax-nodejs/blob/main/client-libraries.md#http11-rest-api-mode documentation}.
     * @param {gax} [gaxInstance]: loaded instance of `google-gax`. Useful if you
     *     need to avoid loading the default gRPC version and want to use the fallback
     *     HTTP implementation. Load only fallback version and pass it to the constructor:
     *     ```
     *     const gax = require('google-gax/build/src/fallback'); // avoids loading google-gax with gRPC
     *     const client = new DatastoreClient({fallback: 'rest'}, gax);
     *     ```
     */
    constructor(opts?: ClientOptions, gaxInstance?: typeof gax | typeof gax.fallback);
    /**
     * Initialize the client.
     * Performs asynchronous operations (such as authentication) and prepares the client.
     * This function will be called automatically when any class method is called for the
     * first time, but if you need to initialize it before calling an actual method,
     * feel free to call initialize() directly.
     *
     * You can await on this method if you want to make sure the client is initialized.
     *
     * @returns {Promise} A promise that resolves to an authenticated service stub.
     */
    initialize(): Promise<{
        [name: string]: Function;
    }>;
    /**
     * The DNS address for this API service.
     * @returns {string} The DNS address for this service.
     */
    static get servicePath(): string;
    /**
     * The DNS address for this API service - same as servicePath(),
     * exists for compatibility reasons.
     * @returns {string} The DNS address for this service.
     */
    static get apiEndpoint(): string;
    /**
     * The port for this API service.
     * @returns {number} The default port for this service.
     */
    static get port(): number;
    /**
     * The scopes needed to make gRPC calls for every method defined
     * in this service.
     * @returns {string[]} List of default scopes.
     */
    static get scopes(): string[];
    getProjectId(): Promise<string>;
    getProjectId(callback: Callback<string, undefined, undefined>): void;
    /**
     * Looks up entities by key.
     *
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.projectId
     *   Required. The ID of the project against which to make the request.
     * @param {string} request.databaseId
     *   The ID of the database against which to make the request.
     *
     *   '(default)' is not allowed; please use empty string '' to refer the default
     *   database.
     * @param {google.datastore.v1.ReadOptions} request.readOptions
     *   The options for this lookup request.
     * @param {number[]} request.keys
     *   Required. Keys of entities to look up.
     * @param {object} [options]
     *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
     * @returns {Promise} - The promise which resolves to an array.
     *   The first element of the array is an object representing {@link google.datastore.v1.LookupResponse | LookupResponse}.
     *   Please see the
     *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
     *   for more details and examples.
     * @example <caption>include:samples/generated/v1/datastore.lookup.js</caption>
     * region_tag:datastore_v1_generated_Datastore_Lookup_async
     */
    lookup(request?: protos.google.datastore.v1.ILookupRequest, options?: CallOptions): Promise<[
        protos.google.datastore.v1.ILookupResponse,
        protos.google.datastore.v1.ILookupRequest | undefined,
        {} | undefined
    ]>;
    lookup(request: protos.google.datastore.v1.ILookupRequest, options: CallOptions, callback: Callback<protos.google.datastore.v1.ILookupResponse, protos.google.datastore.v1.ILookupRequest | null | undefined, {} | null | undefined>): void;
    lookup(request: protos.google.datastore.v1.ILookupRequest, callback: Callback<protos.google.datastore.v1.ILookupResponse, protos.google.datastore.v1.ILookupRequest | null | undefined, {} | null | undefined>): void;
    /**
     * Queries for entities.
     *
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.projectId
     *   Required. The ID of the project against which to make the request.
     * @param {string} request.databaseId
     *   The ID of the database against which to make the request.
     *
     *   '(default)' is not allowed; please use empty string '' to refer the default
     *   database.
     * @param {google.datastore.v1.PartitionId} request.partitionId
     *   Entities are partitioned into subsets, identified by a partition ID.
     *   Queries are scoped to a single partition.
     *   This partition ID is normalized with the standard default context
     *   partition ID.
     * @param {google.datastore.v1.ReadOptions} request.readOptions
     *   The options for this query.
     * @param {google.datastore.v1.Query} request.query
     *   The query to run.
     * @param {google.datastore.v1.GqlQuery} request.gqlQuery
     *   The GQL query to run. This query must be a non-aggregation query.
     * @param {object} [options]
     *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
     * @returns {Promise} - The promise which resolves to an array.
     *   The first element of the array is an object representing {@link google.datastore.v1.RunQueryResponse | RunQueryResponse}.
     *   Please see the
     *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
     *   for more details and examples.
     * @example <caption>include:samples/generated/v1/datastore.run_query.js</caption>
     * region_tag:datastore_v1_generated_Datastore_RunQuery_async
     */
    runQuery(request?: protos.google.datastore.v1.IRunQueryRequest, options?: CallOptions): Promise<[
        protos.google.datastore.v1.IRunQueryResponse,
        protos.google.datastore.v1.IRunQueryRequest | undefined,
        {} | undefined
    ]>;
    runQuery(request: protos.google.datastore.v1.IRunQueryRequest, options: CallOptions, callback: Callback<protos.google.datastore.v1.IRunQueryResponse, protos.google.datastore.v1.IRunQueryRequest | null | undefined, {} | null | undefined>): void;
    runQuery(request: protos.google.datastore.v1.IRunQueryRequest, callback: Callback<protos.google.datastore.v1.IRunQueryResponse, protos.google.datastore.v1.IRunQueryRequest | null | undefined, {} | null | undefined>): void;
    /**
     * Runs an aggregation query.
     *
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.projectId
     *   Required. The ID of the project against which to make the request.
     * @param {string} request.databaseId
     *   The ID of the database against which to make the request.
     *
     *   '(default)' is not allowed; please use empty string '' to refer the default
     *   database.
     * @param {google.datastore.v1.PartitionId} request.partitionId
     *   Entities are partitioned into subsets, identified by a partition ID.
     *   Queries are scoped to a single partition.
     *   This partition ID is normalized with the standard default context
     *   partition ID.
     * @param {google.datastore.v1.ReadOptions} request.readOptions
     *   The options for this query.
     * @param {google.datastore.v1.AggregationQuery} request.aggregationQuery
     *   The query to run.
     * @param {google.datastore.v1.GqlQuery} request.gqlQuery
     *   The GQL query to run. This query must be an aggregation query.
     * @param {object} [options]
     *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
     * @returns {Promise} - The promise which resolves to an array.
     *   The first element of the array is an object representing {@link google.datastore.v1.RunAggregationQueryResponse | RunAggregationQueryResponse}.
     *   Please see the
     *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
     *   for more details and examples.
     * @example <caption>include:samples/generated/v1/datastore.run_aggregation_query.js</caption>
     * region_tag:datastore_v1_generated_Datastore_RunAggregationQuery_async
     */
    runAggregationQuery(request?: protos.google.datastore.v1.IRunAggregationQueryRequest, options?: CallOptions): Promise<[
        protos.google.datastore.v1.IRunAggregationQueryResponse,
        protos.google.datastore.v1.IRunAggregationQueryRequest | undefined,
        {} | undefined
    ]>;
    runAggregationQuery(request: protos.google.datastore.v1.IRunAggregationQueryRequest, options: CallOptions, callback: Callback<protos.google.datastore.v1.IRunAggregationQueryResponse, protos.google.datastore.v1.IRunAggregationQueryRequest | null | undefined, {} | null | undefined>): void;
    runAggregationQuery(request: protos.google.datastore.v1.IRunAggregationQueryRequest, callback: Callback<protos.google.datastore.v1.IRunAggregationQueryResponse, protos.google.datastore.v1.IRunAggregationQueryRequest | null | undefined, {} | null | undefined>): void;
    /**
     * Begins a new transaction.
     *
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.projectId
     *   Required. The ID of the project against which to make the request.
     * @param {string} request.databaseId
     *   The ID of the database against which to make the request.
     *
     *   '(default)' is not allowed; please use empty string '' to refer the default
     *   database.
     * @param {google.datastore.v1.TransactionOptions} request.transactionOptions
     *   Options for a new transaction.
     * @param {object} [options]
     *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
     * @returns {Promise} - The promise which resolves to an array.
     *   The first element of the array is an object representing {@link google.datastore.v1.BeginTransactionResponse | BeginTransactionResponse}.
     *   Please see the
     *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
     *   for more details and examples.
     * @example <caption>include:samples/generated/v1/datastore.begin_transaction.js</caption>
     * region_tag:datastore_v1_generated_Datastore_BeginTransaction_async
     */
    beginTransaction(request?: protos.google.datastore.v1.IBeginTransactionRequest, options?: CallOptions): Promise<[
        protos.google.datastore.v1.IBeginTransactionResponse,
        protos.google.datastore.v1.IBeginTransactionRequest | undefined,
        {} | undefined
    ]>;
    beginTransaction(request: protos.google.datastore.v1.IBeginTransactionRequest, options: CallOptions, callback: Callback<protos.google.datastore.v1.IBeginTransactionResponse, protos.google.datastore.v1.IBeginTransactionRequest | null | undefined, {} | null | undefined>): void;
    beginTransaction(request: protos.google.datastore.v1.IBeginTransactionRequest, callback: Callback<protos.google.datastore.v1.IBeginTransactionResponse, protos.google.datastore.v1.IBeginTransactionRequest | null | undefined, {} | null | undefined>): void;
    /**
     * Commits a transaction, optionally creating, deleting or modifying some
     * entities.
     *
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.projectId
     *   Required. The ID of the project against which to make the request.
     * @param {string} request.databaseId
     *   The ID of the database against which to make the request.
     *
     *   '(default)' is not allowed; please use empty string '' to refer the default
     *   database.
     * @param {google.datastore.v1.CommitRequest.Mode} request.mode
     *   The type of commit to perform. Defaults to `TRANSACTIONAL`.
     * @param {Buffer} request.transaction
     *   The identifier of the transaction associated with the commit. A
     *   transaction identifier is returned by a call to
     *   {@link google.datastore.v1.Datastore.BeginTransaction|Datastore.BeginTransaction}.
     * @param {google.datastore.v1.TransactionOptions} request.singleUseTransaction
     *   Options for beginning a new transaction for this request.
     *   The transaction is committed when the request completes. If specified,
     *   {@link google.datastore.v1.TransactionOptions|TransactionOptions.mode} must be
     *   {@link google.datastore.v1.TransactionOptions.ReadWrite|TransactionOptions.ReadWrite}.
     * @param {number[]} request.mutations
     *   The mutations to perform.
     *
     *   When mode is `TRANSACTIONAL`, mutations affecting a single entity are
     *   applied in order. The following sequences of mutations affecting a single
     *   entity are not permitted in a single `Commit` request:
     *
     *   - `insert` followed by `insert`
     *   - `update` followed by `insert`
     *   - `upsert` followed by `insert`
     *   - `delete` followed by `update`
     *
     *   When mode is `NON_TRANSACTIONAL`, no two mutations may affect a single
     *   entity.
     * @param {object} [options]
     *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
     * @returns {Promise} - The promise which resolves to an array.
     *   The first element of the array is an object representing {@link google.datastore.v1.CommitResponse | CommitResponse}.
     *   Please see the
     *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
     *   for more details and examples.
     * @example <caption>include:samples/generated/v1/datastore.commit.js</caption>
     * region_tag:datastore_v1_generated_Datastore_Commit_async
     */
    commit(request?: protos.google.datastore.v1.ICommitRequest, options?: CallOptions): Promise<[
        protos.google.datastore.v1.ICommitResponse,
        protos.google.datastore.v1.ICommitRequest | undefined,
        {} | undefined
    ]>;
    commit(request: protos.google.datastore.v1.ICommitRequest, options: CallOptions, callback: Callback<protos.google.datastore.v1.ICommitResponse, protos.google.datastore.v1.ICommitRequest | null | undefined, {} | null | undefined>): void;
    commit(request: protos.google.datastore.v1.ICommitRequest, callback: Callback<protos.google.datastore.v1.ICommitResponse, protos.google.datastore.v1.ICommitRequest | null | undefined, {} | null | undefined>): void;
    /**
     * Rolls back a transaction.
     *
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.projectId
     *   Required. The ID of the project against which to make the request.
     * @param {string} request.databaseId
     *   The ID of the database against which to make the request.
     *
     *   '(default)' is not allowed; please use empty string '' to refer the default
     *   database.
     * @param {Buffer} request.transaction
     *   Required. The transaction identifier, returned by a call to
     *   {@link google.datastore.v1.Datastore.BeginTransaction|Datastore.BeginTransaction}.
     * @param {object} [options]
     *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
     * @returns {Promise} - The promise which resolves to an array.
     *   The first element of the array is an object representing {@link google.datastore.v1.RollbackResponse | RollbackResponse}.
     *   Please see the
     *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
     *   for more details and examples.
     * @example <caption>include:samples/generated/v1/datastore.rollback.js</caption>
     * region_tag:datastore_v1_generated_Datastore_Rollback_async
     */
    rollback(request?: protos.google.datastore.v1.IRollbackRequest, options?: CallOptions): Promise<[
        protos.google.datastore.v1.IRollbackResponse,
        protos.google.datastore.v1.IRollbackRequest | undefined,
        {} | undefined
    ]>;
    rollback(request: protos.google.datastore.v1.IRollbackRequest, options: CallOptions, callback: Callback<protos.google.datastore.v1.IRollbackResponse, protos.google.datastore.v1.IRollbackRequest | null | undefined, {} | null | undefined>): void;
    rollback(request: protos.google.datastore.v1.IRollbackRequest, callback: Callback<protos.google.datastore.v1.IRollbackResponse, protos.google.datastore.v1.IRollbackRequest | null | undefined, {} | null | undefined>): void;
    /**
     * Allocates IDs for the given keys, which is useful for referencing an entity
     * before it is inserted.
     *
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.projectId
     *   Required. The ID of the project against which to make the request.
     * @param {string} request.databaseId
     *   The ID of the database against which to make the request.
     *
     *   '(default)' is not allowed; please use empty string '' to refer the default
     *   database.
     * @param {number[]} request.keys
     *   Required. A list of keys with incomplete key paths for which to allocate
     *   IDs. No key may be reserved/read-only.
     * @param {object} [options]
     *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
     * @returns {Promise} - The promise which resolves to an array.
     *   The first element of the array is an object representing {@link google.datastore.v1.AllocateIdsResponse | AllocateIdsResponse}.
     *   Please see the
     *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
     *   for more details and examples.
     * @example <caption>include:samples/generated/v1/datastore.allocate_ids.js</caption>
     * region_tag:datastore_v1_generated_Datastore_AllocateIds_async
     */
    allocateIds(request?: protos.google.datastore.v1.IAllocateIdsRequest, options?: CallOptions): Promise<[
        protos.google.datastore.v1.IAllocateIdsResponse,
        protos.google.datastore.v1.IAllocateIdsRequest | undefined,
        {} | undefined
    ]>;
    allocateIds(request: protos.google.datastore.v1.IAllocateIdsRequest, options: CallOptions, callback: Callback<protos.google.datastore.v1.IAllocateIdsResponse, protos.google.datastore.v1.IAllocateIdsRequest | null | undefined, {} | null | undefined>): void;
    allocateIds(request: protos.google.datastore.v1.IAllocateIdsRequest, callback: Callback<protos.google.datastore.v1.IAllocateIdsResponse, protos.google.datastore.v1.IAllocateIdsRequest | null | undefined, {} | null | undefined>): void;
    /**
     * Prevents the supplied keys' IDs from being auto-allocated by Cloud
     * Datastore.
     *
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.projectId
     *   Required. The ID of the project against which to make the request.
     * @param {string} request.databaseId
     *   The ID of the database against which to make the request.
     *
     *   '(default)' is not allowed; please use empty string '' to refer the default
     *   database.
     * @param {number[]} request.keys
     *   Required. A list of keys with complete key paths whose numeric IDs should
     *   not be auto-allocated.
     * @param {object} [options]
     *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
     * @returns {Promise} - The promise which resolves to an array.
     *   The first element of the array is an object representing {@link google.datastore.v1.ReserveIdsResponse | ReserveIdsResponse}.
     *   Please see the
     *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
     *   for more details and examples.
     * @example <caption>include:samples/generated/v1/datastore.reserve_ids.js</caption>
     * region_tag:datastore_v1_generated_Datastore_ReserveIds_async
     */
    reserveIds(request?: protos.google.datastore.v1.IReserveIdsRequest, options?: CallOptions): Promise<[
        protos.google.datastore.v1.IReserveIdsResponse,
        protos.google.datastore.v1.IReserveIdsRequest | undefined,
        {} | undefined
    ]>;
    reserveIds(request: protos.google.datastore.v1.IReserveIdsRequest, options: CallOptions, callback: Callback<protos.google.datastore.v1.IReserveIdsResponse, protos.google.datastore.v1.IReserveIdsRequest | null | undefined, {} | null | undefined>): void;
    reserveIds(request: protos.google.datastore.v1.IReserveIdsRequest, callback: Callback<protos.google.datastore.v1.IReserveIdsResponse, protos.google.datastore.v1.IReserveIdsRequest | null | undefined, {} | null | undefined>): void;
    /**
     * Gets the latest state of a long-running operation.  Clients can use this
     * method to poll the operation result at intervals as recommended by the API
     * service.
     *
     * @param {Object} request - The request object that will be sent.
     * @param {string} request.name - The name of the operation resource.
     * @param {Object=} options
     *   Optional parameters. You can override the default settings for this call,
     *   e.g, timeout, retries, paginations, etc. See {@link
     *   https://googleapis.github.io/gax-nodejs/global.html#CallOptions | gax.CallOptions}
     *   for the details.
     * @param {function(?Error, ?Object)=} callback
     *   The function which will be called with the result of the API call.
     *
     *   The second parameter to the callback is an object representing
     *   {@link google.longrunning.Operation | google.longrunning.Operation}.
     * @return {Promise} - The promise which resolves to an array.
     *   The first element of the array is an object representing
     * {@link google.longrunning.Operation | google.longrunning.Operation}.
     * The promise has a method named "cancel" which cancels the ongoing API call.
     *
     * @example
     * ```
     * const client = longrunning.operationsClient();
     * const name = '';
     * const [response] = await client.getOperation({name});
     * // doThingsWith(response)
     * ```
     */
    getOperation(request: protos.google.longrunning.GetOperationRequest, options?: gax.CallOptions | Callback<protos.google.longrunning.Operation, protos.google.longrunning.GetOperationRequest, {} | null | undefined>, callback?: Callback<protos.google.longrunning.Operation, protos.google.longrunning.GetOperationRequest, {} | null | undefined>): Promise<[protos.google.longrunning.Operation]>;
    /**
     * Lists operations that match the specified filter in the request. If the
     * server doesn't support this method, it returns `UNIMPLEMENTED`. Returns an iterable object.
     *
     * For-await-of syntax is used with the iterable to recursively get response element on-demand.
     *
     * @param {Object} request - The request object that will be sent.
     * @param {string} request.name - The name of the operation collection.
     * @param {string} request.filter - The standard list filter.
     * @param {number=} request.pageSize -
     *   The maximum number of resources contained in the underlying API
     *   response. If page streaming is performed per-resource, this
     *   parameter does not affect the return value. If page streaming is
     *   performed per-page, this determines the maximum number of
     *   resources in a page.
     * @param {Object=} options
     *   Optional parameters. You can override the default settings for this call,
     *   e.g, timeout, retries, paginations, etc. See {@link
     *   https://googleapis.github.io/gax-nodejs/global.html#CallOptions | gax.CallOptions} for the
     *   details.
     * @returns {Object}
     *   An iterable Object that conforms to {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols | iteration protocols}.
     *
     * @example
     * ```
     * const client = longrunning.operationsClient();
     * for await (const response of client.listOperationsAsync(request));
     * // doThingsWith(response)
     * ```
     */
    listOperationsAsync(request: protos.google.longrunning.ListOperationsRequest, options?: gax.CallOptions): AsyncIterable<protos.google.longrunning.ListOperationsResponse>;
    /**
     * Starts asynchronous cancellation on a long-running operation.  The server
     * makes a best effort to cancel the operation, but success is not
     * guaranteed.  If the server doesn't support this method, it returns
     * `google.rpc.Code.UNIMPLEMENTED`.  Clients can use
     * {@link Operations.GetOperation} or
     * other methods to check whether the cancellation succeeded or whether the
     * operation completed despite cancellation. On successful cancellation,
     * the operation is not deleted; instead, it becomes an operation with
     * an {@link Operation.error} value with a {@link google.rpc.Status.code} of
     * 1, corresponding to `Code.CANCELLED`.
     *
     * @param {Object} request - The request object that will be sent.
     * @param {string} request.name - The name of the operation resource to be cancelled.
     * @param {Object=} options
     *   Optional parameters. You can override the default settings for this call,
     * e.g, timeout, retries, paginations, etc. See {@link
     * https://googleapis.github.io/gax-nodejs/global.html#CallOptions | gax.CallOptions} for the
     * details.
     * @param {function(?Error)=} callback
     *   The function which will be called with the result of the API call.
     * @return {Promise} - The promise which resolves when API call finishes.
     *   The promise has a method named "cancel" which cancels the ongoing API
     * call.
     *
     * @example
     * ```
     * const client = longrunning.operationsClient();
     * await client.cancelOperation({name: ''});
     * ```
     */
    cancelOperation(request: protos.google.longrunning.CancelOperationRequest, options?: gax.CallOptions | Callback<protos.google.protobuf.Empty, protos.google.longrunning.CancelOperationRequest, {} | undefined | null>, callback?: Callback<protos.google.longrunning.CancelOperationRequest, protos.google.protobuf.Empty, {} | undefined | null>): Promise<protos.google.protobuf.Empty>;
    /**
     * Deletes a long-running operation. This method indicates that the client is
     * no longer interested in the operation result. It does not cancel the
     * operation. If the server doesn't support this method, it returns
     * `google.rpc.Code.UNIMPLEMENTED`.
     *
     * @param {Object} request - The request object that will be sent.
     * @param {string} request.name - The name of the operation resource to be deleted.
     * @param {Object=} options
     *   Optional parameters. You can override the default settings for this call,
     * e.g, timeout, retries, paginations, etc. See {@link
     * https://googleapis.github.io/gax-nodejs/global.html#CallOptions | gax.CallOptions}
     * for the details.
     * @param {function(?Error)=} callback
     *   The function which will be called with the result of the API call.
     * @return {Promise} - The promise which resolves when API call finishes.
     *   The promise has a method named "cancel" which cancels the ongoing API
     * call.
     *
     * @example
     * ```
     * const client = longrunning.operationsClient();
     * await client.deleteOperation({name: ''});
     * ```
     */
    deleteOperation(request: protos.google.longrunning.DeleteOperationRequest, options?: gax.CallOptions | Callback<protos.google.protobuf.Empty, protos.google.longrunning.DeleteOperationRequest, {} | null | undefined>, callback?: Callback<protos.google.protobuf.Empty, protos.google.longrunning.DeleteOperationRequest, {} | null | undefined>): Promise<protos.google.protobuf.Empty>;
    /**
     * Terminate the gRPC channel and close the client.
     *
     * The client will no longer be usable and all future behavior is undefined.
     * @returns {Promise} A promise that resolves when the client is closed.
     */
    close(): Promise<void>;
}