code: def header(self):
      '''
      This returns the first header in the data file
  
      '''
      if self._header is None:
        self._header = self._read_half_frame_header(self.data)
  
      return self._headef header(self):
      '''
      This returns the first header in the data file
  
      '''
      if self._header is None:
        self._header = self._read_half_frame_header(self.data)
  
      return self._header
docs: This returns the first header in the data file