import { NodeDefinition, StatelessGraphNode, StatelessNodeDefinition, StatelessNodeType } from '@dws/muster';
import { RequestHandler } from 'express';
export declare const HEADERS_PARAM_NAME = "$$headers";
export interface HeaderNode extends StatelessGraphNode<'http-header', HeaderNodeProperties> {
}
export interface HeaderNodeDefinition extends StatelessNodeDefinition<'http-header', HeaderNodeProperties> {
}
export interface HeaderNodeProperties {
    name: string;
}
export declare const HeaderNodeType: StatelessNodeType<'http-header', HeaderNodeProperties>;
export declare function header(name: string): HeaderNodeDefinition;
export declare function isHeaderNodeDefinition(value: NodeDefinition): value is HeaderNodeDefinition;
export declare function headerMiddleware(): RequestHandler;