class_docstr: Tests that non-Gaussian gates are properly handled.
docstr: ops: Tests that the `_heisenberg_rep` for a non-Gaussian gates is
  None
docstr_tok: ["ops",":","Tests","that","the","`","_heisenberg_rep","`","for","a","non-Gaussian","gates","is","None"]
code: def test_heisenberg_rep_nonguassian(self, gate):
      """ops: Tests that the `_heisenberg_rep` for a non-Gaussian gates is
      None
      """
      assert gate._heisenberg_rep(0.1) is None
  
imports: import pytest
  import numpy.testing
  from pennylane import numpy
  from pennylane.operation import AnyWires
  from pennylane.ops import cv
  from pennylane.wires import Wires
label_desc: Use image node_id 1 for calling the TestNonGaussian obj's underlying member method code with example usage: obj.test_heisenberg_rep_nonguassian(gate) without return types