import type * as gax from 'google-gax';
import type { Callback, CallOptions, Descriptors, ClientOptions, PaginationCallback } from 'google-gax';
import { Transform } from 'stream';
import * as protos from '../../protos/protos';
/**
 *  Service to handle EDW migrations.
 * @class
 * @memberof v2
 */
export declare class MigrationServiceClient {
    private _terminated;
    private _opts;
    private _providedCustomServicePath;
    private _gaxModule;
    private _gaxGrpc;
    private _protos;
    private _defaults;
    private _universeDomain;
    private _servicePath;
    private _log;
    auth: gax.GoogleAuth;
    descriptors: Descriptors;
    warn: (code: string, message: string, warnType?: string) => void;
    innerApiCalls: {
        [name: string]: Function;
    };
    pathTemplates: {
        [name: string]: gax.PathTemplate;
    };
    migrationServiceStub?: Promise<{
        [name: string]: Function;
    }>;
    /**
     * Construct an instance of MigrationServiceClient.
     *
     * @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://cloud.google.com/docs/authentication/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} [options.fallback] - Use HTTP/1.1 REST mode.
     *     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 MigrationServiceClient({fallback: true}, 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.
     * @deprecated Use the apiEndpoint method of the client instance.
     * @returns {string} The DNS address for this service.
     */
    static get servicePath(): string;
    /**
     * The DNS address for this API service - same as servicePath.
     * @deprecated Use the apiEndpoint method of the client instance.
     * @returns {string} The DNS address for this service.
     */
    static get apiEndpoint(): string;
    /**
     * The DNS address for this API service.
     * @returns {string} The DNS address for this service.
     */
    get apiEndpoint(): string;
    get universeDomain(): 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;
    /**
     * Creates a migration workflow.
     *
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.parent
     *   Required. The name of the project to which this migration workflow belongs.
     *   Example: `projects/foo/locations/bar`
     * @param {google.cloud.bigquery.migration.v2.MigrationWorkflow} request.migrationWorkflow
     *   Required. The migration workflow to create.
     * @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 protos.google.cloud.bigquery.migration.v2.MigrationWorkflow|MigrationWorkflow}.
     *   Please see the {@link https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods | documentation }
     *   for more details and examples.
     * @example <caption>include:samples/generated/v2/migration_service.create_migration_workflow.js</caption>
     * region_tag:bigquerymigration_v2_generated_MigrationService_CreateMigrationWorkflow_async
     */
    createMigrationWorkflow(request?: protos.google.cloud.bigquery.migration.v2.ICreateMigrationWorkflowRequest, options?: CallOptions): Promise<[
        protos.google.cloud.bigquery.migration.v2.IMigrationWorkflow,
        (protos.google.cloud.bigquery.migration.v2.ICreateMigrationWorkflowRequest | undefined),
        {} | undefined
    ]>;
    createMigrationWorkflow(request: protos.google.cloud.bigquery.migration.v2.ICreateMigrationWorkflowRequest, options: CallOptions, callback: Callback<protos.google.cloud.bigquery.migration.v2.IMigrationWorkflow, protos.google.cloud.bigquery.migration.v2.ICreateMigrationWorkflowRequest | null | undefined, {} | null | undefined>): void;
    createMigrationWorkflow(request: protos.google.cloud.bigquery.migration.v2.ICreateMigrationWorkflowRequest, callback: Callback<protos.google.cloud.bigquery.migration.v2.IMigrationWorkflow, protos.google.cloud.bigquery.migration.v2.ICreateMigrationWorkflowRequest | null | undefined, {} | null | undefined>): void;
    /**
     * Gets a previously created migration workflow.
     *
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.name
     *   Required. The unique identifier for the migration workflow.
     *   Example: `projects/123/locations/us/workflows/1234`
     * @param {google.protobuf.FieldMask} request.readMask
     *   The list of fields to be retrieved.
     * @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 protos.google.cloud.bigquery.migration.v2.MigrationWorkflow|MigrationWorkflow}.
     *   Please see the {@link https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods | documentation }
     *   for more details and examples.
     * @example <caption>include:samples/generated/v2/migration_service.get_migration_workflow.js</caption>
     * region_tag:bigquerymigration_v2_generated_MigrationService_GetMigrationWorkflow_async
     */
    getMigrationWorkflow(request?: protos.google.cloud.bigquery.migration.v2.IGetMigrationWorkflowRequest, options?: CallOptions): Promise<[
        protos.google.cloud.bigquery.migration.v2.IMigrationWorkflow,
        (protos.google.cloud.bigquery.migration.v2.IGetMigrationWorkflowRequest | undefined),
        {} | undefined
    ]>;
    getMigrationWorkflow(request: protos.google.cloud.bigquery.migration.v2.IGetMigrationWorkflowRequest, options: CallOptions, callback: Callback<protos.google.cloud.bigquery.migration.v2.IMigrationWorkflow, protos.google.cloud.bigquery.migration.v2.IGetMigrationWorkflowRequest | null | undefined, {} | null | undefined>): void;
    getMigrationWorkflow(request: protos.google.cloud.bigquery.migration.v2.IGetMigrationWorkflowRequest, callback: Callback<protos.google.cloud.bigquery.migration.v2.IMigrationWorkflow, protos.google.cloud.bigquery.migration.v2.IGetMigrationWorkflowRequest | null | undefined, {} | null | undefined>): void;
    /**
     * Deletes a migration workflow by name.
     *
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.name
     *   Required. The unique identifier for the migration workflow.
     *   Example: `projects/123/locations/us/workflows/1234`
     * @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 protos.google.protobuf.Empty|Empty}.
     *   Please see the {@link https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods | documentation }
     *   for more details and examples.
     * @example <caption>include:samples/generated/v2/migration_service.delete_migration_workflow.js</caption>
     * region_tag:bigquerymigration_v2_generated_MigrationService_DeleteMigrationWorkflow_async
     */
    deleteMigrationWorkflow(request?: protos.google.cloud.bigquery.migration.v2.IDeleteMigrationWorkflowRequest, options?: CallOptions): Promise<[
        protos.google.protobuf.IEmpty,
        (protos.google.cloud.bigquery.migration.v2.IDeleteMigrationWorkflowRequest | undefined),
        {} | undefined
    ]>;
    deleteMigrationWorkflow(request: protos.google.cloud.bigquery.migration.v2.IDeleteMigrationWorkflowRequest, options: CallOptions, callback: Callback<protos.google.protobuf.IEmpty, protos.google.cloud.bigquery.migration.v2.IDeleteMigrationWorkflowRequest | null | undefined, {} | null | undefined>): void;
    deleteMigrationWorkflow(request: protos.google.cloud.bigquery.migration.v2.IDeleteMigrationWorkflowRequest, callback: Callback<protos.google.protobuf.IEmpty, protos.google.cloud.bigquery.migration.v2.IDeleteMigrationWorkflowRequest | null | undefined, {} | null | undefined>): void;
    /**
     * Starts a previously created migration workflow. I.e., the state transitions
     * from DRAFT to RUNNING. This is a no-op if the state is already RUNNING.
     * An error will be signaled if the state is anything other than DRAFT or
     * RUNNING.
     *
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.name
     *   Required. The unique identifier for the migration workflow.
     *   Example: `projects/123/locations/us/workflows/1234`
     * @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 protos.google.protobuf.Empty|Empty}.
     *   Please see the {@link https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods | documentation }
     *   for more details and examples.
     * @example <caption>include:samples/generated/v2/migration_service.start_migration_workflow.js</caption>
     * region_tag:bigquerymigration_v2_generated_MigrationService_StartMigrationWorkflow_async
     */
    startMigrationWorkflow(request?: protos.google.cloud.bigquery.migration.v2.IStartMigrationWorkflowRequest, options?: CallOptions): Promise<[
        protos.google.protobuf.IEmpty,
        (protos.google.cloud.bigquery.migration.v2.IStartMigrationWorkflowRequest | undefined),
        {} | undefined
    ]>;
    startMigrationWorkflow(request: protos.google.cloud.bigquery.migration.v2.IStartMigrationWorkflowRequest, options: CallOptions, callback: Callback<protos.google.protobuf.IEmpty, protos.google.cloud.bigquery.migration.v2.IStartMigrationWorkflowRequest | null | undefined, {} | null | undefined>): void;
    startMigrationWorkflow(request: protos.google.cloud.bigquery.migration.v2.IStartMigrationWorkflowRequest, callback: Callback<protos.google.protobuf.IEmpty, protos.google.cloud.bigquery.migration.v2.IStartMigrationWorkflowRequest | null | undefined, {} | null | undefined>): void;
    /**
     * Gets a previously created migration subtask.
     *
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.name
     *   Required. The unique identifier for the migration subtask.
     *   Example: `projects/123/locations/us/workflows/1234/subtasks/543`
     * @param {google.protobuf.FieldMask} [request.readMask]
     *   Optional. The list of fields to be retrieved.
     * @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 protos.google.cloud.bigquery.migration.v2.MigrationSubtask|MigrationSubtask}.
     *   Please see the {@link https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods | documentation }
     *   for more details and examples.
     * @example <caption>include:samples/generated/v2/migration_service.get_migration_subtask.js</caption>
     * region_tag:bigquerymigration_v2_generated_MigrationService_GetMigrationSubtask_async
     */
    getMigrationSubtask(request?: protos.google.cloud.bigquery.migration.v2.IGetMigrationSubtaskRequest, options?: CallOptions): Promise<[
        protos.google.cloud.bigquery.migration.v2.IMigrationSubtask,
        (protos.google.cloud.bigquery.migration.v2.IGetMigrationSubtaskRequest | undefined),
        {} | undefined
    ]>;
    getMigrationSubtask(request: protos.google.cloud.bigquery.migration.v2.IGetMigrationSubtaskRequest, options: CallOptions, callback: Callback<protos.google.cloud.bigquery.migration.v2.IMigrationSubtask, protos.google.cloud.bigquery.migration.v2.IGetMigrationSubtaskRequest | null | undefined, {} | null | undefined>): void;
    getMigrationSubtask(request: protos.google.cloud.bigquery.migration.v2.IGetMigrationSubtaskRequest, callback: Callback<protos.google.cloud.bigquery.migration.v2.IMigrationSubtask, protos.google.cloud.bigquery.migration.v2.IGetMigrationSubtaskRequest | null | undefined, {} | null | undefined>): void;
    /**
     * Lists previously created migration workflow.
     *
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.parent
     *   Required. The project and location of the migration workflows to list.
     *   Example: `projects/123/locations/us`
     * @param {google.protobuf.FieldMask} request.readMask
     *   The list of fields to be retrieved.
     * @param {number} request.pageSize
     *   The maximum number of migration workflows to return. The service may return
     *   fewer than this number.
     * @param {string} request.pageToken
     *   A page token, received from previous `ListMigrationWorkflows` call.
     *   Provide this to retrieve the subsequent page.
     *
     *   When paginating, all other parameters provided to `ListMigrationWorkflows`
     *   must match the call that provided the page token.
     * @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 Array of {@link protos.google.cloud.bigquery.migration.v2.MigrationWorkflow|MigrationWorkflow}.
     *   The client library will perform auto-pagination by default: it will call the API as many
     *   times as needed and will merge results from all the pages into this array.
     *   Note that it can affect your quota.
     *   We recommend using `listMigrationWorkflowsAsync()`
     *   method described below for async iteration which you can stop as needed.
     *   Please see the {@link https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination | documentation }
     *   for more details and examples.
     */
    listMigrationWorkflows(request?: protos.google.cloud.bigquery.migration.v2.IListMigrationWorkflowsRequest, options?: CallOptions): Promise<[
        protos.google.cloud.bigquery.migration.v2.IMigrationWorkflow[],
        protos.google.cloud.bigquery.migration.v2.IListMigrationWorkflowsRequest | null,
        protos.google.cloud.bigquery.migration.v2.IListMigrationWorkflowsResponse
    ]>;
    listMigrationWorkflows(request: protos.google.cloud.bigquery.migration.v2.IListMigrationWorkflowsRequest, options: CallOptions, callback: PaginationCallback<protos.google.cloud.bigquery.migration.v2.IListMigrationWorkflowsRequest, protos.google.cloud.bigquery.migration.v2.IListMigrationWorkflowsResponse | null | undefined, protos.google.cloud.bigquery.migration.v2.IMigrationWorkflow>): void;
    listMigrationWorkflows(request: protos.google.cloud.bigquery.migration.v2.IListMigrationWorkflowsRequest, callback: PaginationCallback<protos.google.cloud.bigquery.migration.v2.IListMigrationWorkflowsRequest, protos.google.cloud.bigquery.migration.v2.IListMigrationWorkflowsResponse | null | undefined, protos.google.cloud.bigquery.migration.v2.IMigrationWorkflow>): void;
    /**
     * Equivalent to `listMigrationWorkflows`, but returns a NodeJS Stream object.
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.parent
     *   Required. The project and location of the migration workflows to list.
     *   Example: `projects/123/locations/us`
     * @param {google.protobuf.FieldMask} request.readMask
     *   The list of fields to be retrieved.
     * @param {number} request.pageSize
     *   The maximum number of migration workflows to return. The service may return
     *   fewer than this number.
     * @param {string} request.pageToken
     *   A page token, received from previous `ListMigrationWorkflows` call.
     *   Provide this to retrieve the subsequent page.
     *
     *   When paginating, all other parameters provided to `ListMigrationWorkflows`
     *   must match the call that provided the page token.
     * @param {object} [options]
     *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
     * @returns {Stream}
     *   An object stream which emits an object representing {@link protos.google.cloud.bigquery.migration.v2.MigrationWorkflow|MigrationWorkflow} on 'data' event.
     *   The client library will perform auto-pagination by default: it will call the API as many
     *   times as needed. Note that it can affect your quota.
     *   We recommend using `listMigrationWorkflowsAsync()`
     *   method described below for async iteration which you can stop as needed.
     *   Please see the {@link https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination | documentation }
     *   for more details and examples.
     */
    listMigrationWorkflowsStream(request?: protos.google.cloud.bigquery.migration.v2.IListMigrationWorkflowsRequest, options?: CallOptions): Transform;
    /**
     * Equivalent to `listMigrationWorkflows`, but returns an iterable object.
     *
     * `for`-`await`-`of` syntax is used with the iterable to get response elements on-demand.
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.parent
     *   Required. The project and location of the migration workflows to list.
     *   Example: `projects/123/locations/us`
     * @param {google.protobuf.FieldMask} request.readMask
     *   The list of fields to be retrieved.
     * @param {number} request.pageSize
     *   The maximum number of migration workflows to return. The service may return
     *   fewer than this number.
     * @param {string} request.pageToken
     *   A page token, received from previous `ListMigrationWorkflows` call.
     *   Provide this to retrieve the subsequent page.
     *
     *   When paginating, all other parameters provided to `ListMigrationWorkflows`
     *   must match the call that provided the page token.
     * @param {object} [options]
     *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
     * @returns {Object}
     *   An iterable Object that allows {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols | async iteration }.
     *   When you iterate the returned iterable, each element will be an object representing
     *   {@link protos.google.cloud.bigquery.migration.v2.MigrationWorkflow|MigrationWorkflow}. The API will be called under the hood as needed, once per the page,
     *   so you can stop the iteration when you don't need more results.
     *   Please see the {@link https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination | documentation }
     *   for more details and examples.
     * @example <caption>include:samples/generated/v2/migration_service.list_migration_workflows.js</caption>
     * region_tag:bigquerymigration_v2_generated_MigrationService_ListMigrationWorkflows_async
     */
    listMigrationWorkflowsAsync(request?: protos.google.cloud.bigquery.migration.v2.IListMigrationWorkflowsRequest, options?: CallOptions): AsyncIterable<protos.google.cloud.bigquery.migration.v2.IMigrationWorkflow>;
    /**
     * Lists previously created migration subtasks.
     *
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.parent
     *   Required. The migration task of the subtasks to list.
     *   Example: `projects/123/locations/us/workflows/1234`
     * @param {google.protobuf.FieldMask} [request.readMask]
     *   Optional. The list of fields to be retrieved.
     * @param {number} [request.pageSize]
     *   Optional. The maximum number of migration tasks to return. The service may
     *   return fewer than this number.
     * @param {string} [request.pageToken]
     *   Optional. A page token, received from previous `ListMigrationSubtasks`
     *   call. Provide this to retrieve the subsequent page.
     *
     *   When paginating, all other parameters provided to `ListMigrationSubtasks`
     *   must match the call that provided the page token.
     * @param {string} [request.filter]
     *   Optional. The filter to apply. This can be used to get the subtasks of a
     *   specific tasks in a workflow, e.g. `migration_task = "ab012"` where
     *   `"ab012"` is the task ID (not the name in the named map).
     * @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 Array of {@link protos.google.cloud.bigquery.migration.v2.MigrationSubtask|MigrationSubtask}.
     *   The client library will perform auto-pagination by default: it will call the API as many
     *   times as needed and will merge results from all the pages into this array.
     *   Note that it can affect your quota.
     *   We recommend using `listMigrationSubtasksAsync()`
     *   method described below for async iteration which you can stop as needed.
     *   Please see the {@link https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination | documentation }
     *   for more details and examples.
     */
    listMigrationSubtasks(request?: protos.google.cloud.bigquery.migration.v2.IListMigrationSubtasksRequest, options?: CallOptions): Promise<[
        protos.google.cloud.bigquery.migration.v2.IMigrationSubtask[],
        protos.google.cloud.bigquery.migration.v2.IListMigrationSubtasksRequest | null,
        protos.google.cloud.bigquery.migration.v2.IListMigrationSubtasksResponse
    ]>;
    listMigrationSubtasks(request: protos.google.cloud.bigquery.migration.v2.IListMigrationSubtasksRequest, options: CallOptions, callback: PaginationCallback<protos.google.cloud.bigquery.migration.v2.IListMigrationSubtasksRequest, protos.google.cloud.bigquery.migration.v2.IListMigrationSubtasksResponse | null | undefined, protos.google.cloud.bigquery.migration.v2.IMigrationSubtask>): void;
    listMigrationSubtasks(request: protos.google.cloud.bigquery.migration.v2.IListMigrationSubtasksRequest, callback: PaginationCallback<protos.google.cloud.bigquery.migration.v2.IListMigrationSubtasksRequest, protos.google.cloud.bigquery.migration.v2.IListMigrationSubtasksResponse | null | undefined, protos.google.cloud.bigquery.migration.v2.IMigrationSubtask>): void;
    /**
     * Equivalent to `listMigrationSubtasks`, but returns a NodeJS Stream object.
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.parent
     *   Required. The migration task of the subtasks to list.
     *   Example: `projects/123/locations/us/workflows/1234`
     * @param {google.protobuf.FieldMask} [request.readMask]
     *   Optional. The list of fields to be retrieved.
     * @param {number} [request.pageSize]
     *   Optional. The maximum number of migration tasks to return. The service may
     *   return fewer than this number.
     * @param {string} [request.pageToken]
     *   Optional. A page token, received from previous `ListMigrationSubtasks`
     *   call. Provide this to retrieve the subsequent page.
     *
     *   When paginating, all other parameters provided to `ListMigrationSubtasks`
     *   must match the call that provided the page token.
     * @param {string} [request.filter]
     *   Optional. The filter to apply. This can be used to get the subtasks of a
     *   specific tasks in a workflow, e.g. `migration_task = "ab012"` where
     *   `"ab012"` is the task ID (not the name in the named map).
     * @param {object} [options]
     *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
     * @returns {Stream}
     *   An object stream which emits an object representing {@link protos.google.cloud.bigquery.migration.v2.MigrationSubtask|MigrationSubtask} on 'data' event.
     *   The client library will perform auto-pagination by default: it will call the API as many
     *   times as needed. Note that it can affect your quota.
     *   We recommend using `listMigrationSubtasksAsync()`
     *   method described below for async iteration which you can stop as needed.
     *   Please see the {@link https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination | documentation }
     *   for more details and examples.
     */
    listMigrationSubtasksStream(request?: protos.google.cloud.bigquery.migration.v2.IListMigrationSubtasksRequest, options?: CallOptions): Transform;
    /**
     * Equivalent to `listMigrationSubtasks`, but returns an iterable object.
     *
     * `for`-`await`-`of` syntax is used with the iterable to get response elements on-demand.
     * @param {Object} request
     *   The request object that will be sent.
     * @param {string} request.parent
     *   Required. The migration task of the subtasks to list.
     *   Example: `projects/123/locations/us/workflows/1234`
     * @param {google.protobuf.FieldMask} [request.readMask]
     *   Optional. The list of fields to be retrieved.
     * @param {number} [request.pageSize]
     *   Optional. The maximum number of migration tasks to return. The service may
     *   return fewer than this number.
     * @param {string} [request.pageToken]
     *   Optional. A page token, received from previous `ListMigrationSubtasks`
     *   call. Provide this to retrieve the subsequent page.
     *
     *   When paginating, all other parameters provided to `ListMigrationSubtasks`
     *   must match the call that provided the page token.
     * @param {string} [request.filter]
     *   Optional. The filter to apply. This can be used to get the subtasks of a
     *   specific tasks in a workflow, e.g. `migration_task = "ab012"` where
     *   `"ab012"` is the task ID (not the name in the named map).
     * @param {object} [options]
     *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
     * @returns {Object}
     *   An iterable Object that allows {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols | async iteration }.
     *   When you iterate the returned iterable, each element will be an object representing
     *   {@link protos.google.cloud.bigquery.migration.v2.MigrationSubtask|MigrationSubtask}. The API will be called under the hood as needed, once per the page,
     *   so you can stop the iteration when you don't need more results.
     *   Please see the {@link https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination | documentation }
     *   for more details and examples.
     * @example <caption>include:samples/generated/v2/migration_service.list_migration_subtasks.js</caption>
     * region_tag:bigquerymigration_v2_generated_MigrationService_ListMigrationSubtasks_async
     */
    listMigrationSubtasksAsync(request?: protos.google.cloud.bigquery.migration.v2.IListMigrationSubtasksRequest, options?: CallOptions): AsyncIterable<protos.google.cloud.bigquery.migration.v2.IMigrationSubtask>;
    /**
     * Return a fully-qualified location resource name string.
     *
     * @param {string} project
     * @param {string} location
     * @returns {string} Resource name string.
     */
    locationPath(project: string, location: string): string;
    /**
     * Parse the project from Location resource.
     *
     * @param {string} locationName
     *   A fully-qualified path representing Location resource.
     * @returns {string} A string representing the project.
     */
    matchProjectFromLocationName(locationName: string): string | number;
    /**
     * Parse the location from Location resource.
     *
     * @param {string} locationName
     *   A fully-qualified path representing Location resource.
     * @returns {string} A string representing the location.
     */
    matchLocationFromLocationName(locationName: string): string | number;
    /**
     * Return a fully-qualified migrationSubtask resource name string.
     *
     * @param {string} project
     * @param {string} location
     * @param {string} workflow
     * @param {string} subtask
     * @returns {string} Resource name string.
     */
    migrationSubtaskPath(project: string, location: string, workflow: string, subtask: string): string;
    /**
     * Parse the project from MigrationSubtask resource.
     *
     * @param {string} migrationSubtaskName
     *   A fully-qualified path representing MigrationSubtask resource.
     * @returns {string} A string representing the project.
     */
    matchProjectFromMigrationSubtaskName(migrationSubtaskName: string): string | number;
    /**
     * Parse the location from MigrationSubtask resource.
     *
     * @param {string} migrationSubtaskName
     *   A fully-qualified path representing MigrationSubtask resource.
     * @returns {string} A string representing the location.
     */
    matchLocationFromMigrationSubtaskName(migrationSubtaskName: string): string | number;
    /**
     * Parse the workflow from MigrationSubtask resource.
     *
     * @param {string} migrationSubtaskName
     *   A fully-qualified path representing MigrationSubtask resource.
     * @returns {string} A string representing the workflow.
     */
    matchWorkflowFromMigrationSubtaskName(migrationSubtaskName: string): string | number;
    /**
     * Parse the subtask from MigrationSubtask resource.
     *
     * @param {string} migrationSubtaskName
     *   A fully-qualified path representing MigrationSubtask resource.
     * @returns {string} A string representing the subtask.
     */
    matchSubtaskFromMigrationSubtaskName(migrationSubtaskName: string): string | number;
    /**
     * Return a fully-qualified migrationWorkflow resource name string.
     *
     * @param {string} project
     * @param {string} location
     * @param {string} workflow
     * @returns {string} Resource name string.
     */
    migrationWorkflowPath(project: string, location: string, workflow: string): string;
    /**
     * Parse the project from MigrationWorkflow resource.
     *
     * @param {string} migrationWorkflowName
     *   A fully-qualified path representing MigrationWorkflow resource.
     * @returns {string} A string representing the project.
     */
    matchProjectFromMigrationWorkflowName(migrationWorkflowName: string): string | number;
    /**
     * Parse the location from MigrationWorkflow resource.
     *
     * @param {string} migrationWorkflowName
     *   A fully-qualified path representing MigrationWorkflow resource.
     * @returns {string} A string representing the location.
     */
    matchLocationFromMigrationWorkflowName(migrationWorkflowName: string): string | number;
    /**
     * Parse the workflow from MigrationWorkflow resource.
     *
     * @param {string} migrationWorkflowName
     *   A fully-qualified path representing MigrationWorkflow resource.
     * @returns {string} A string representing the workflow.
     */
    matchWorkflowFromMigrationWorkflowName(migrationWorkflowName: string): string | number;
    /**
     * 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>;
}
