def prev_content(self, start, amount=1):
        while start > 0 and self.code[start] in (' ', '\t', '\n'):
            start -= 1

        return self.code[(start or amount) - amount: start]
Bytes written to L{TLSMemoryBIOProtocol} after C{loseConnection} is
dataset/ETHPy150Open timothycrosley/jiphy/jiphy/parser.py/Parser.prev_content--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/protocols/test/test_tls.py/TLSMemoryBIOTests.test_writeAfterLoseConnection