import { DataConverter, LoadedDataConverter } from '@temporalio/common';
import { ConnectionLike, Metadata } from './types';
export interface BaseClientOptions {
    /**
     * {@link DataConverter} to use for serializing and deserializing payloads
     */
    dataConverter?: DataConverter;
    /**
     * Identity to report to the server
     *
     * @default `${process.pid}@${os.hostname()}`
     */
    identity?: string;
    /**
     * Connection to use to communicate with the server.
     *
     * By default, connects to localhost.
     *
     * Connections are expensive to construct and should be reused.
     */
    connection?: ConnectionLike;
    /**
     * Server namespace
     *
     * @default default
     */
    namespace?: string;
}
export type WithDefaults<Options extends BaseClientOptions> = //
Required<Omit<Options, 'connection'>> & Pick<Options, 'connection'>;
export type LoadedWithDefaults<Options extends BaseClientOptions> = //
WithDefaults<Options> & {
    loadedDataConverter: LoadedDataConverter;
};
export declare function defaultBaseClientOptions(): WithDefaults<BaseClientOptions>;
export declare class BaseClient {
    /**
     * The underlying {@link Connection | connection} or {@link NativeConnection | native connection} used by this client.
     *
     * Clients are cheap to create, but connections are expensive. Where it makes sense,
     * a single connection may and should be reused by multiple `Client`s.
     */
    readonly connection: ConnectionLike;
    private readonly loadedDataConverter;
    protected constructor(options?: BaseClientOptions);
    /**
     * Set a deadline for any service requests executed in `fn`'s scope.
     *
     * The deadline is a point in time after which any pending gRPC request will be considered as failed;
     * this will locally result in the request call throwing a {@link _grpc.ServiceError|ServiceError}
     * with code {@link _grpc.status.DEADLINE_EXCEEDED|DEADLINE_EXCEEDED}; see {@link isGrpcDeadlineError}.
     *
     * It is stronly recommended to explicitly set deadlines. If no deadline is set, then it is
     * possible for the client to end up waiting forever for a response.
     *
     * This method is only a convenience wrapper around {@link Connection.withDeadline}.
     *
     * @param deadline a point in time after which the request will be considered as failed; either a
     *                 Date object, or a number of milliseconds since the Unix epoch (UTC).
     * @returns the value returned from `fn`
     *
     * @see https://grpc.io/docs/guides/deadlines/
     */
    withDeadline<R>(deadline: number | Date, fn: () => Promise<R>): Promise<R>;
    /**
     * Set an {@link AbortSignal} that, when aborted, cancels any ongoing service requests executed in
     * `fn`'s scope. This will locally result in the request call throwing a {@link _grpc.ServiceError|ServiceError}
     * with code {@link _grpc.status.CANCELLED|CANCELLED}; see {@link isGrpcCancelledError}.
     *
     * This method is only a convenience wrapper around {@link Connection.withAbortSignal}.
     *
     * @returns value returned from `fn`
     *
     * @see https://developer.mozilla.org/en-US/docs/Web/API/AbortSignal
     */
    withAbortSignal<R>(abortSignal: AbortSignal, fn: () => Promise<R>): Promise<R>;
    /**
     * Set metadata for any service requests executed in `fn`'s scope.
     *
     * This method is only a convenience wrapper around {@link Connection.withMetadata}.
     *
     * @returns returned value of `fn`
     */
    withMetadata<R>(metadata: Metadata, fn: () => Promise<R>): Promise<R>;
    protected get dataConverter(): LoadedDataConverter;
}