code: def _input_as_multiline_string(self, data):
          
          self._input_filename = self.getTmpFilename(
              self.WorkingDir, suffix='.fasta')
          with open(self._input_filename, 'w') as f:
              f.write(data)
          return self._input_filename
docs: Write multiline string to temp file, return filename
  
          data: a multiline string to be written to a file.