docs: public ApiResponse<List<Long>> getUniverseStructuresWithHttpInfo(String datasource, String filter,
              String ifNoneMatch) throws ApiException {
          com.squareup.okhttp.Call call = getUniverseStructuresValidateBeforeCall(datasource, filter, ifNoneMatch, null);
          Type localVarReturnType = new TypeToken<List<Long>>() {
          }.getType();
          return apiClient.execute(call, localVarReturnType);
      }