docs: def compile_temp(d, key, value):
      """
      Compiles temporary dictionaries for metadata. Adds a new entry to an existing dictionary.
      :param dict d:
      :param str key:
      :param any value:
      :return dict:
      """
      if not value:
          d[key] = None
      elif len(value) == 1:
          d[key] = value[0]
      else:
          d[key] = value
      return d