code: def all_presets():
      """
      Get all preset from preset directory
      :return: |Array| preset list
      """
      return [
          f[:-3]
          for f in os.listdir(os.path.join(Def.GROUP_NAME, "presets"))
          if f[-3:] == ".py" and not f == "__init__.py"
      ]
  
file_path: coach/rl_coach/tests/utils/presets_utils.py
imports: import os
  import pytest
  from importlib import import_module
  from rl_coach.tests.utils.definitions import Definitions
label_desc: Use image node_id 3 for calling a global function with example usage: all_presets() and returns: unknown