class_docstr: Test the properties of the symbolic op.
class_docstr_tok: ["Test","the","properties","of","the","symbolic","op","."]
docstr: Test that pauli_rep is None by default
docstr_tok: ["Test","that","pauli_rep","is","None","by","default"]
code: def test_pauli_rep(self):
      """Test that pauli_rep is None by default"""
      base = Operator("a")
      op = SymbolicOp(base)
      assert op.pauli_rep is None
  
imports: from copy import copy
  import pytest
  import pennylane
  from pennylane import numpy
  from pennylane.operation import Operator
  from pennylane.ops.op_math import SymbolicOp, ScalarSymbolicOp
  from pennylane.wires import Wires
label_desc: Use image node_id 10 for calling the TestProperties obj's underlying member method code with example usage: obj.test_pauli_rep() without return types