import type { ApiEndpoint, IEndpointInfo } from '../endpoint.js';
import { CallerHooks } from '../hooks.js';
/**
 * Request Content-Type extension for endpoint.
 *
 */
export interface IEndpointInputContentType {
    /** Endpoint request content-type, if was specified. */
    readonly contentType?: string;
    /** Marks this endpoint with Content-Type request header to be set as 'application/x-www-form-urlencoded'. */
    asUrlEncoded(): this;
    /** Marks this endpoint with Content-Type request header to be set as 'multipart/form-data'. */
    asMultipartForm(): this;
    /** Marks this endpoint with Content-Type request header to be set as 'application/json'. */
    asJson(): this;
    /** Marks this endpoint with Content-Type request header to be set as passed value. */
    withContentType(contentType: string): this;
}
export declare namespace IEndpointInputContentType {
    const extender: ApiEndpoint.IBuilderExtender<IEndpointInputContentType>;
    function guard(api: IEndpointInfo): api is (IEndpointInfo & IEndpointInputContentType);
    function tryApplyContentType(api: IEndpointInfo, headers: Record<string, string>): void;
    function createHooks(): CallerHooks<object>;
}