def transcripts(self, build='<STR_LIT>', hgnc_id=None):
query = {'<STR_LIT>': build}<EOL>if hgnc_id:<EOL><INDENT>query['<STR_LIT>'] = hgnc_id<EOL><DEDENT>return self.transcript_collection.find(query)<EOL>
Return all transcripts.

            If a gene is specified return all transcripts for the gene

        Args:
            build(str)
            hgnc_id(int)

        Returns:
            iterable(transcript)