### Question:
StatisticsApi { public OverviewResponse overview(String xProjectId) throws ApiException { ApiResponse<OverviewResponse> resp = overviewWithHttpInfo(xProjectId); return resp.getData(); } StatisticsApi();  StatisticsApi(ApiClient apiClient); ApiClient getApiClient(); void setApiClient(ApiClient apiClient); com.squareup.okhttp.Call overviewCall(String xProjectId, final ProgressResponseBody.ProgressListener progressListener, final ProgressRequestBody.ProgressRequestListener progressRequestListener); OverviewResponse overview(String xProjectId); ApiResponse<OverviewResponse> overviewWithHttpInfo(String xProjectId); com.squareup.okhttp.Call overviewAsync(String xProjectId, final ApiCallback<OverviewResponse> callback);  }### Answer:
@Test public void overviewTest() throws ApiException { String xProjectId = null; OverviewResponse response = api.overview(xProjectId); }