code: def write(self):
          
  
          rabs = [x.seqrecord for x in self.gproteins.values() if x.is_rab()]
          return SeqIO.write(rabs, self.tmpfname + '.phase2', 'fasta')
docs: Write sequences predicted to be Rabs as a fasta file.
  
          :return: Number of written sequences
          :rtype: int