import { ResourceActionOptions } from './resource-action-options';
/**
 * Type that describes the value signature for a `ResourceHeaderDefault`
 * instance.
 */
export declare type ResourceHeaderDefaultValue = ((query: Object, payload: Object, options: ResourceActionOptions) => string) | string;
/**
 * Class that defines a http header default for building
 * requests on resources.
 */
export declare class ResourceHeaderDefault {
    protected _key: string;
    protected _value: ResourceHeaderDefaultValue;
    /**
     * Gets the key of the http header.
     * @returns {string}
     */
    get key(): string;
    /**
     * Gets the value of the http header.
     * @returns {string}
     */
    getValue(query: Object, payload: Object, options: ResourceActionOptions): string;
    /**
     * @param {string} _key Key of the url parm.
     * @param {ResourceHeaderDefaultValue} _value Value of the url param as string or as getter function.
     */
    constructor(_key: string, _value: ResourceHeaderDefaultValue);
}
/**
 * Class that defines a http header default that takes the value from the
 * payload object for building requests on resources.
 */
export declare class ResourceHeaderDefaultFromPayload extends ResourceHeaderDefault {
    constructor(key: string, value: string);
}