code: def test_standard_validity():
      """Check the operation using the assert_valid function."""
  
      op = qml.CosineWindow(wires=[0, 1])
  
      qml.ops.functions.assert_valid(op)
  
file_path: pennylane/tests/templates/test_state_preparations/test_cosine_window.py
imports: import pytest
  import numpy
  import pennylane
  from pennylane.wires import WireError
label_desc: Use image node_id 1 for calling a global function with example usage: test_standard_validity() without return types