code: def record(self):
          # type: () -> bytes
          '''
          A method to generate the string representing this UDF Long AD.
  
          Parameters:
           None.
          Returns:
           A string representing this UDF Long AD.
          '''
          if not self._initialized:
              raise pycdlibexception.PyCdlibInternalError('UDF Long AD not initialized')
  
          return struct.pack(self.FMT, self.extent_length, self.log_block_num,
                             self.part_ref_num, self.impl_usef record(self):
          # type: () -> bytes
          '''
          A method to generate the string representing this UDF Long AD.
  
          Parameters:
           None.
          Returns:
           A string representing this UDF Long AD.
          '''
          if not self._initialized:
              raise pycdlibexception.PyCdlibInternalError('UDF Long AD not initialized')
  
          return struct.pack(self.FMT, self.extent_length, self.log_block_num,
                             self.part_ref_num, self.impl_use)
docs: A method to generate the string representing this UDF Long AD.
  
          Parameters:
           None.
          Returns:
           A string representing this UDF Long AD.