### Question:
OfficesApi { public List<GetOfficesResponse> retrieveOffices(Boolean includeAllOffices, String orderBy, String sortOrder) throws ApiException { ApiResponse<List<GetOfficesResponse>> resp = retrieveOfficesWithHttpInfo(includeAllOffices, orderBy, sortOrder); return resp.getData(); } OfficesApi();  OfficesApi(ApiClient apiClient); ApiClient getApiClient(); void setApiClient(ApiClient apiClient); com.squareup.okhttp.Call createOfficeCall(PostOfficesRequest body, final ProgressResponseBody.ProgressListener progressListener, final ProgressRequestBody.ProgressRequestListener progressRequestListener); PostOfficesResponse createOffice(PostOfficesRequest body); ApiResponse<PostOfficesResponse> createOfficeWithHttpInfo(PostOfficesRequest body); com.squareup.okhttp.Call createOfficeAsync(PostOfficesRequest body, final ApiCallback<PostOfficesResponse> callback); com.squareup.okhttp.Call retreiveOfficeCall(Long officeId, final ProgressResponseBody.ProgressListener progressListener, final ProgressRequestBody.ProgressRequestListener progressRequestListener); GetOfficesResponse retreiveOffice(Long officeId); ApiResponse<GetOfficesResponse> retreiveOfficeWithHttpInfo(Long officeId); com.squareup.okhttp.Call retreiveOfficeAsync(Long officeId, final ApiCallback<GetOfficesResponse> callback); com.squareup.okhttp.Call retrieveOfficeTemplateCall(final ProgressResponseBody.ProgressListener progressListener, final ProgressRequestBody.ProgressRequestListener progressRequestListener); GetOfficesTemplateResponse retrieveOfficeTemplate(); ApiResponse<GetOfficesTemplateResponse> retrieveOfficeTemplateWithHttpInfo(); com.squareup.okhttp.Call retrieveOfficeTemplateAsync(final ApiCallback<GetOfficesTemplateResponse> callback); com.squareup.okhttp.Call retrieveOfficesCall(Boolean includeAllOffices, String orderBy, String sortOrder, final ProgressResponseBody.ProgressListener progressListener, final ProgressRequestBody.ProgressRequestListener progressRequestListener); List<GetOfficesResponse> retrieveOffices(Boolean includeAllOffices, String orderBy, String sortOrder); ApiResponse<List<GetOfficesResponse>> retrieveOfficesWithHttpInfo(Boolean includeAllOffices, String orderBy, String sortOrder); com.squareup.okhttp.Call retrieveOfficesAsync(Boolean includeAllOffices, String orderBy, String sortOrder, final ApiCallback<List<GetOfficesResponse>> callback); com.squareup.okhttp.Call updateOfficeCall(Long officeId, PutOfficesOfficeIdRequest body, final ProgressResponseBody.ProgressListener progressListener, final ProgressRequestBody.ProgressRequestListener progressRequestListener); PutOfficesOfficeIdResponse updateOffice(Long officeId, PutOfficesOfficeIdRequest body); ApiResponse<PutOfficesOfficeIdResponse> updateOfficeWithHttpInfo(Long officeId, PutOfficesOfficeIdRequest body); com.squareup.okhttp.Call updateOfficeAsync(Long officeId, PutOfficesOfficeIdRequest body, final ApiCallback<PutOfficesOfficeIdResponse> callback);  }### Answer:
@Test public void retrieveOfficesTest() throws ApiException { Boolean includeAllOffices = null; String orderBy = null; String sortOrder = null; List<GetOfficesResponse> response = api.retrieveOffices(includeAllOffices, orderBy, sortOrder); }