### Question:
GlobalConfigurationApi { public List<GetGlobalConfigurationsResponse> retrieveConfiguration(Boolean survey) throws ApiException { ApiResponse<List<GetGlobalConfigurationsResponse>> resp = retrieveConfigurationWithHttpInfo(survey); return resp.getData(); } GlobalConfigurationApi();  GlobalConfigurationApi(ApiClient apiClient); ApiClient getApiClient(); void setApiClient(ApiClient apiClient); com.squareup.okhttp.Call retrieveConfigurationCall(Boolean survey, final ProgressResponseBody.ProgressListener progressListener, final ProgressRequestBody.ProgressRequestListener progressRequestListener); List<GetGlobalConfigurationsResponse> retrieveConfiguration(Boolean survey); ApiResponse<List<GetGlobalConfigurationsResponse>> retrieveConfigurationWithHttpInfo(Boolean survey); com.squareup.okhttp.Call retrieveConfigurationAsync(Boolean survey, final ApiCallback<List<GetGlobalConfigurationsResponse>> callback); com.squareup.okhttp.Call retrieveOneCall(Long configId, final ProgressResponseBody.ProgressListener progressListener, final ProgressRequestBody.ProgressRequestListener progressRequestListener); GetGlobalConfigurationsResponse retrieveOne(Long configId); ApiResponse<GetGlobalConfigurationsResponse> retrieveOneWithHttpInfo(Long configId); com.squareup.okhttp.Call retrieveOneAsync(Long configId, final ApiCallback<GetGlobalConfigurationsResponse> callback); com.squareup.okhttp.Call updateConfigurationCall(Long configId, PutGlobalConfigurationsRequest body, final ProgressResponseBody.ProgressListener progressListener, final ProgressRequestBody.ProgressRequestListener progressRequestListener); PutGlobalConfigurationsResponse updateConfiguration(Long configId, PutGlobalConfigurationsRequest body); ApiResponse<PutGlobalConfigurationsResponse> updateConfigurationWithHttpInfo(Long configId, PutGlobalConfigurationsRequest body); com.squareup.okhttp.Call updateConfigurationAsync(Long configId, PutGlobalConfigurationsRequest body, final ApiCallback<PutGlobalConfigurationsResponse> callback);  }### Answer:
@Test public void retrieveConfigurationTest() throws ApiException { Boolean survey = null; List<GetGlobalConfigurationsResponse> response = api.retrieveConfiguration(survey); }