docs: def add_library_path(path: str) -> bool:
      """
      Adds the path to the Python system path if not already added and the path
      exists.
  
      :param path:
          The path to add to the system paths
      :return:
          Whether or not the path was added. Only returns False if the path was
          not added because it doesn't exist
      """
  
      if not os.path.exists(path):
          return False
  
      if path not in sys.path:
          sys.path.append(path)
  
      return True