public Response GetReciversDocs(GetReciversDocsRequest request)
        {
            IEnumerable <string>    rd;
            GetReciversDocsResponse retval;

            try
            {
                rd = _messanger.GetReciversDocs(request.DocID);

                retval = new GetReciversDocsResponseOK(rd);
                return(retval);
            }
            catch (Exception ex)
            {
                return(new AppResponseError(ex.Message));
            }
        }