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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 do_IHaveRequest(self, apdu):
 """Respond to a I-Have request."""

        if _debug: WhoHasIHaveServices._debug("do_IHaveRequest %r", apdu)

        # check for required parameters
        if apdu.deviceIdentifier is None:
            raise MissingRequiredParameter("deviceIdentifier required")
        if apdu.objectIdentifier is None:
            raise MissingRequiredParameter("objectIdentifier required")
        if apdu.objectName is None:
            raise MissingRequiredParameter("objectName required")