docs: def relatedness_wid(wid_pairs, gcube_token=None, lang=DEFAULT_LANG, api=DEFAULT_REL_API):
      '''
      Get the semantic relatedness among pairs of entities. Entities are indicated by their
      Wikipedia ID (an integer).
      :param wid_pairs: either one pair or a list of pairs of Wikipedia IDs.
      :param gcube_token: the authentication token provided by the D4Science infrastructure.
      :param lang: the Wikipedia language.
      :param api: the API endpoint.
      '''
      return _relatedness("id", wid_pairs, gcube_token, lang, api)