import { Observable } from 'rxjs';
/**
 * Priority of the actual request
 */
export declare enum FETCH_PRIORITY {
    LOW = 0,
    NORMAL = 1,
    HIGH = 2
}
/**
 * Callback interface used to make a GET request to the resource
 * and to ask for text content.
 *
 * The URL can be a relative URL and will be resolved against the API URL
 */
export declare type FetchText = (aUrl: string, aPriority?: FETCH_PRIORITY) => Observable<string>;
/**
 * Callback interface used to send data to the server.
 *
 * The URL can be a relative URL and will be resolved against the API URL
 */
export declare type WriteText = (aUrl: string, aBody: any, aPriority?: FETCH_PRIORITY) => Observable<any>;