code: def to_text(self, filename=None, overwrite=True):
          '''
          Write this catalog out to a text file.
          '''
  
          table = self.standardized
          #table = hstack([self.identifiers,
          #                self._coordinate_table(),
          #                self.magnitudes,
          #                self.errors])
  
          if filename == None:
              filename = '{}.txt'.format(self.name)
          self.speak('saving to {}'.format(filename))
          table.write(filename, format='ascii.ecsv', overwrite=overwritef to_text(self, filename=None, overwrite=True):
          '''
          Write this catalog out to a text file.
          '''
  
          table = self.standardized
          #table = hstack([self.identifiers,
          #                self._coordinate_table(),
          #                self.magnitudes,
          #                self.errors])
  
          if filename == None:
              filename = '{}.txt'.format(self.name)
          self.speak('saving to {}'.format(filename))
          table.write(filename, format='ascii.ecsv', overwrite=overwrite)
docs: Write this catalog out to a text file.