import { Command as ICommand, Handler, MetadataBearer, MiddlewareStack as IMiddlewareStack } from "@smithy/types";
/**
 * @public
 */
export declare abstract class Command<Input extends ClientInput, Output extends ClientOutput, ResolvedClientConfiguration, ClientInput extends object = any, ClientOutput extends MetadataBearer = any> implements ICommand<ClientInput, Input, ClientOutput, Output, ResolvedClientConfiguration> {
    abstract input: Input;
    readonly middlewareStack: IMiddlewareStack<Input, Output>;
    abstract resolveMiddleware(stack: IMiddlewareStack<ClientInput, ClientOutput>, configuration: ResolvedClientConfiguration, options: any): Handler<Input, Output>;
}