docs: public com.squareup.okhttp.Call getCharactersCharacterIdNotificationsAsync(Integer characterId, String datasource,
              String ifNoneMatch, String token, final ApiCallback<List<CharacterNotificationsResponse>> callback)
              throws ApiException {
  
          com.squareup.okhttp.Call call = getCharactersCharacterIdNotificationsValidateBeforeCall(characterId,
                  datasource, ifNoneMatch, token, callback);
          Type localVarReturnType = new TypeToken<List<CharacterNotificationsResponse>>() {
          }.getType();
          apiClient.executeAsync(call, localVarReturnType, callback);
          return call;
      }