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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:

async def release_name_async(self, bus_name, error = None, timeout = DBUS.TIMEOUT_USE_DEFAULT) :
        "releases a registered bus name."
        assert self.loop != None, "no event loop to attach coroutine to"
        return \
            await self.connection.bus_release_name_async(bus_name, error = error, timeout = timeout)