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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def reorder(self, module=None):
 """Reorder the Activations in the Agenda. If no Module is specified, the current one is used. To be called after changing the conflict resolution strategy. """

        module = module._mdl if module is not None else ffi.NULL

        lib.EnvReorderAgenda(self._env, module)