nodes: 0, module; 1, function_definition; 2, function_name:sort_transcripts; 3, parameters; 4, block; 5, identifier:self; 6, expression_statement; 7, expression_statement; 8, expression_statement; 9, comment:"""Sort the transcripts stored here"""; 10, assignment; 11, assignment; 12, identifier:txs; 13, call; 14, attribute; 15, identifier:txs; 16, identifier:sorted; 17, argument_list; 18, identifier:self; 19, identifier:_transcripts; 20, attribute; 21, keyword_argument; 22, identifier:self; 23, identifier:transcripts; 24, identifier:key; 25, lambda; 26, lambda_parameters; 27, tuple; 28, identifier:x; 29, attribute; 30, attribute; 31, attribute; 32, attribute; 33, identifier:chr; 34, attribute; 35, identifier:start; 36, attribute; 37, identifier:end; 38, identifier:x; 39, identifier:range; 40, identifier:x; 41, identifier:range; 42, identifier:x; 43, identifier:range
code: def sort_transcripts(self):
       """Sort the transcripts stored here"""
       txs = sorted(self.transcripts,key=lambda x: (x.range.chr, x.range.start, x.range.end))
       self._transcripts = txs