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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 body(self):
 """Return the message body, unencoded if needed, deserialized if possible. :rtype: any """

        if self._message_body:  # If already set, return it
            return self._message_body
        self._message_body = self._maybe_decompress_body()
        self._message_body = self._maybe_deserialize_body()
        return self._message_body