

def input(self, in_, out, **kw):
    if self._input_from:
        out.write(in_.read().replace(self._input_from, self._input_to))
    else:
        self.write(in_.read())

dataset/ETHPy150Open miracle2k/webassets/tests/test_bundle_build.py ReplaceFilter.input/VarMisuse@51/60 `out`->`self`