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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 requestBusName(self, newName, allowReplacement=False, replaceExisting=False, doNotQueue=True, errbackUnlessAcquired=True):
 """ Calls org.freedesktop.DBus.RequestName to request that the specified bus name be associated with the connection. @type newName: C{string} @param newName: Bus name to acquire @type allowReplacement: C{bool} @param allowReplacement: If True (defaults to False) and another application later requests this same name, the new requester will be given the name and this connection will lose ownership. @type replaceExisting: C{bool} @param replaceExisting: If True (defaults to False) and another application owns the name but specified allowReplacement at the time of the name acquisition, this connection will assume ownership of the bus name. @type doNotQueue: C{bool} @param doNotQueue: If True (defaults to True) the name request will fail if the name is currently in use. If False, the request will cause this connection to be queued for ownership of the requested name @type errbackUnlessAcquired: C{bool} @param errbackUnlessAcquired: If True (defaults to True) an L{twisted.python.failure.Failure} will be returned if the name is not acquired. @rtype: L{twisted.internet.defer.Deferred} @returns: a Deferred to """

        flags = 0
        if allowReplacement:
            flags |= 0x1
        if replaceExisting:
            flags |= 0x2
        if doNotQueue:
            flags |= 0x4

        d = self.callRemote(
            '/org/freedesktop/DBus',
            'RequestName',
            interface='org.freedesktop.DBus',
            signature='su',
            body=[newName, flags],
            destination='org.freedesktop.DBus',
        )

        def on_result(r):
            if errbackUnlessAcquired and not (
                    r == NAME_ACQUIRED or r == NAME_ALREADY_OWNER):
                raise error.FailedToAcquireName(newName, r)
            return r

        d.addCallback(on_result)

        return d