code: public TermsDetails addTerms(String projectId, List<Term> terms){
          String jsonTerms = new Gson().toJson(terms);
          EditTermsResponse atr = service.editTerms(Action.ADD_TERMS, apiKey, projectId, jsonTerms);
          ApiUtils.checkResponse(atr.response);
          return atr.details;
      }
docs: Add new terms to a project
  
  @param projectId id of the project
  @param terms list of terms
  @return details about the operation