class_docstr: Test the qml.QSVT template.
class_docstr_tok: ["Test","the","qml.QSVT","template","."]
docstr: Test that the label method returns the correct string label
docstr_tok: ["Test","that","the","label","method","returns","the","correct","string","label"]
code: def test_label(self):
      """Test that the label method returns the correct string label"""
      op = qml.QSVT(qml.Hadamard(0), [qml.Identity(0)])
      assert op.label() == "QSVT"
      assert op.label(base_label="custom_label") == "custom_label"
  
imports: import pytest
  import pennylane
  from pennylane import numpy
label_desc: Use image node_id 12 for calling the TestQSVT obj's underlying member method code with example usage: obj.test_label() without return types