### Question:
MixReportApi { public String retrieveXBRLReport(OffsetDateTime startDate, OffsetDateTime endDate, String currency) throws ApiException { ApiResponse<String> resp = retrieveXBRLReportWithHttpInfo(startDate, endDate, currency); return resp.getData(); } MixReportApi();  MixReportApi(ApiClient apiClient); ApiClient getApiClient(); void setApiClient(ApiClient apiClient); com.squareup.okhttp.Call retrieveXBRLReportCall(OffsetDateTime startDate, OffsetDateTime endDate, String currency, final ProgressResponseBody.ProgressListener progressListener, final ProgressRequestBody.ProgressRequestListener progressRequestListener); String retrieveXBRLReport(OffsetDateTime startDate, OffsetDateTime endDate, String currency); ApiResponse<String> retrieveXBRLReportWithHttpInfo(OffsetDateTime startDate, OffsetDateTime endDate, String currency); com.squareup.okhttp.Call retrieveXBRLReportAsync(OffsetDateTime startDate, OffsetDateTime endDate, String currency, final ApiCallback<String> callback);  }### Answer:
@Test public void retrieveXBRLReportTest() throws ApiException { OffsetDateTime startDate = null; OffsetDateTime endDate = null; String currency = null; String response = api.retrieveXBRLReport(startDate, endDate, currency); }