import type { CallOptions, ChannelCredentials, ChannelOptions } from '@grpc/grpc-js';
import { Request } from '../../models';
export interface GrpcRequest extends Request<'GRPC'> {
    headers?: Record<string, string | Buffer | ChannelCredentials>;
    options?: ChannelOptions;
    channelCredentials?: ChannelCredentials;
    callOptions?: CallOptions;
}
export declare function isGrpcRequest(request: Request | undefined): request is GrpcRequest;