code: def gaussian_device_4modes():
      """A 4 mode Gaussian device."""
      return DummyDevice(wires=4)
  
imports: import os
  import pathlib
  import numpy
  import pytest
  import pennylane
  from pennylane.devices import DefaultGaussian
label_desc: Use image node_id 16 for calling a global function with example usage: gaussian_device_4modes() and returns: DummyDevice