@defer.inlineCallbacks
    def writelines(self, sequence):
        for line in sequence:
            yield self.write(line)
Is this object currently locked?
dataset/ETHPy150Open twisted/txmongo/txmongo/_gridfs/grid_file.py/GridIn.writelines--crossover with--dataset/ETHPy150Open google/grr/grr/lib/aff4.py/AFF4Object.locked