Ownership of module is returned

def remove_module(self, module):
        """
        Ownership of module is returned
        """
        with ffi.OutputString() as outerr:
            if ffi.lib.LLVMPY_RemoveModule(self, module, outerr):
                raise RuntimeError(str(outerr))
        self._modules.remove(module)
        module._owned = False