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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 _get_receivers(self, sender):
        ''' filter only receiver functions which correspond to the provided sender '''
        key = _make_id(sender)
        receivers = []
        for (receiver_key, sender_key), receiver in self.receivers.items():
            if sender_key == key:
                receivers.append(receiver)
        return receivers