docstr: Test label method with custom base label.
docstr_tok: ["Test","label","method","with","custom","base","label","."]
code: def test_label_base_name(self, op, label1, label2):
      """Test label method with custom base label."""
  
      assert op.label(base_label="name") == label1
      assert op.label(base_label="name", decimals=2) == label2
  
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 2 for calling the TestLabel obj's underlying member method code with example usage: obj.test_label_base_name(op, label1, label2) without return types