docs: def abs_path(rel_path):
      """Convert a path that is relative to the module from which this function is called,
      to an absolute path.
  
      Args:
        rel_path: str
          Path relative to the location of the module file from which this function is called.
  
      Returns:
          str : Absolute path to the location specified by ``rel_path``.
  
      """
      # noinspection PyProtectedMember
      return os.path.abspath(
          os.path.join(os.path.dirname(sys._getframe(1).f_code.co_filename), rel_path)
      )