/**
 * Class-based view response header injection decorator.
 * @tutorial To set a header in your class based view response, decorate the view with @SetHeader() with header key and
 * value explicitly set via the decorator options.
 * @example @SetHeader({ key: 'Content-Type', value: 'application/json' }) export class MyView {}
 * @returns {(target: any, key: string) => void}
 * @constructor
 * @param header
 */
export declare function SetHeader(header: {
    key?: string;
    value?: any;
}): (...args: any[]) => void;