docs: public com.squareup.okhttp.Call getUniverseSystemKillsAsync(String datasource, String ifNoneMatch,
              final ApiCallback<List<SystemKillsResponse>> callback) throws ApiException {
  
          com.squareup.okhttp.Call call = getUniverseSystemKillsValidateBeforeCall(datasource, ifNoneMatch, callback);
          Type localVarReturnType = new TypeToken<List<SystemKillsResponse>>() {
          }.getType();
          apiClient.executeAsync(call, localVarReturnType, callback);
          return call;
      }