### Question:
FakeApi { public String fakeOuterStringSerialize(String body) throws ApiException { return fakeOuterStringSerializeWithHttpInfo(body).getData(); } FakeApi();  FakeApi(ApiClient apiClient); ApiClient getApiClient(); void setApiClient(ApiClient apiClient); HealthCheckResult fakeHealthGet(); ApiResponse<HealthCheckResult> fakeHealthGetWithHttpInfo(); Boolean fakeOuterBooleanSerialize(Boolean body); ApiResponse<Boolean> fakeOuterBooleanSerializeWithHttpInfo(Boolean body); OuterComposite fakeOuterCompositeSerialize(OuterComposite outerComposite); ApiResponse<OuterComposite> fakeOuterCompositeSerializeWithHttpInfo(OuterComposite outerComposite); BigDecimal fakeOuterNumberSerialize(BigDecimal body); ApiResponse<BigDecimal> fakeOuterNumberSerializeWithHttpInfo(BigDecimal body); String fakeOuterStringSerialize(String body); ApiResponse<String> fakeOuterStringSerializeWithHttpInfo(String body); List<OuterEnum> getArrayOfEnums(); ApiResponse<List<OuterEnum>> getArrayOfEnumsWithHttpInfo(); void testBodyWithFileSchema(FileSchemaTestClass fileSchemaTestClass); ApiResponse<Void> testBodyWithFileSchemaWithHttpInfo(FileSchemaTestClass fileSchemaTestClass); void testBodyWithQueryParams(String query, User user); ApiResponse<Void> testBodyWithQueryParamsWithHttpInfo(String query, User user); Client testClientModel(Client client); ApiResponse<Client> testClientModelWithHttpInfo(Client client); void testEndpointParameters(BigDecimal number, Double _double, String patternWithoutDelimiter, byte[] _byte, Integer integer, Integer int32, Long int64, Float _float, String string, File binary, LocalDate date, OffsetDateTime dateTime, String password, String paramCallback); ApiResponse<Void> testEndpointParametersWithHttpInfo(BigDecimal number, Double _double, String patternWithoutDelimiter, byte[] _byte, Integer integer, Integer int32, Long int64, Float _float, String string, File binary, LocalDate date, OffsetDateTime dateTime, String password, String paramCallback); void testEnumParameters(List<String> enumHeaderStringArray, String enumHeaderString, List<String> enumQueryStringArray, String enumQueryString, Integer enumQueryInteger, Double enumQueryDouble, List<String> enumFormStringArray, String enumFormString); ApiResponse<Void> testEnumParametersWithHttpInfo(List<String> enumHeaderStringArray, String enumHeaderString, List<String> enumQueryStringArray, String enumQueryString, Integer enumQueryInteger, Double enumQueryDouble, List<String> enumFormStringArray, String enumFormString); APItestGroupParametersRequest testGroupParameters(); void testInlineAdditionalProperties(Map<String, String> requestBody); ApiResponse<Void> testInlineAdditionalPropertiesWithHttpInfo(Map<String, String> requestBody); void testJsonFormData(String param, String param2); ApiResponse<Void> testJsonFormDataWithHttpInfo(String param, String param2); void testQueryParameterCollectionFormat(List<String> pipe, List<String> ioutil, List<String> http, List<String> url, List<String> context); ApiResponse<Void> testQueryParameterCollectionFormatWithHttpInfo(List<String> pipe, List<String> ioutil, List<String> http, List<String> url, List<String> context);  }### Answer:
@Test public void fakeOuterStringSerializeTest() throws ApiException { }