code: def test_standard_validity():
      """Check the operation using the assert_valid function."""
      op = qml.ControlledSequence(
          qml.RX(0.25, wires=3), control=[0, 1, 2]
      )
      qml.ops.functions.assert_valid(op)
  
imports: import pytest
  import numpy
  from pennylane import numpy
  import pennylane
  from pennylane.wires import Wires
label_desc: Use image node_id 1 for calling a global function with example usage: test_standard_validity() without return types