code: def test_available_styles():
      """Assert ``available_styles`` returns tuple of available styles."""
  
      assert qml.drawer.available_styles() == (
          "black_white",
          "black_white_dark",
          "sketch",
          "pennylane",
          "pennylane_sketch",
          "sketch_dark",
          "solarized_light",
          "solarized_dark",
          "default",
      )
  
file_path: pennylane/tests/drawer/test_style.py
imports: import pytest
  import pennylane
  from pennylane.drawer.style import _set_style
label_desc: Use image node_id 2 for calling a global function with example usage: test_available_styles() without return types