docs: public ApiResponse<SystemResponse> getUniverseSystemsSystemIdWithHttpInfo(Integer systemId, String acceptLanguage,
              String datasource, String ifNoneMatch, String language) throws ApiException {
          com.squareup.okhttp.Call call = getUniverseSystemsSystemIdValidateBeforeCall(systemId, acceptLanguage,
                  datasource, ifNoneMatch, language, null);
          Type localVarReturnType = new TypeToken<SystemResponse>() {
          }.getType();
          return apiClient.execute(call, localVarReturnType);
      }