code: def status_description(library, session, status):
      
      description = create_string_buffer(256)
      ret = library.viStatusDesc(session, status, description)
      return buffer_to_text(description), ret
docs: Returns a user-readable description of the status code passed to the operation.
  
      Corresponds to viStatusDesc function of the VISA library.
  
      :param library: the visa library wrapped by ctypes.
      :param session: Unique logical identifier to a session.
      :param status: Status code to interpret.
      :return: - The user-readable string interpretation of the status code passed to the operation,
               - return value of the library call.
      :rtype: - unicode (Py2) or str (Py3)
              - :class:`pyvisa.constants.StatusCode`