@classmethod<EOL><INDENT>def get_instance(cls, device):<DEDENT>
if cls._nuis.get(device) is None:<EOL><INDENT>cls._nuis[device] = AndroidUiautomationPoco(device)<EOL><DEDENT>return cls._nuis[device]<EOL>
This is only a slot to store and get already initialized poco instance rather than initializing again. You can
simply pass the ``current device instance`` provided by ``airtest`` to get the AndroidUiautomationPoco instance.
If no such AndroidUiautomationPoco instance, a new instance will be created and stored. 

Args:
    device (:py:obj:`airtest.core.device.Device`): more details refer to ``airtest doc``

Returns:
    poco instance