throws UnresolvableModelException {
            switch (dependency.getManagementKey()) {
                case BASE1_ID:
                    return new StringModelSource(BASE1);
                case BASE2_ID:
                    return new StringModelSource(BASE2);
            }
            return null;
        }
    }

/**
 * Generated tests for {@link Monitor}.
 *
 * <p>This test class generates all of its own test cases in the {@link #suite()} method. Every
 * {@code enterXxx}, {@code tryEnterXxx}, and {@code waitForXxx} method of the {@code Monitor} class
 * is analyzed reflectively to determine appropriate test cases based on its signature. Additional
 * ad hoc test cases can be found in {@link SupplementalMonitorTest}.
 *
 * @author Justin T. Sampson
 */

		},
		{
			version: versionInvalid2,
			errMsg:  fmt.Errorf("could not parse Malformed version: %v", versionInvalid2.GitVersion),
			isValid: false,
		},
	}
	for i, c := range cases {
		t.Run(fmt.Sprintf("case %d %s", i, c.version), func(t *testing.T) {
			got, err := extractKubernetesVersion(c.version)
			if c.errMsg != err && c.isValid {
				t.Fatalf("\nwanted: %v \nbut found: %v", c.errMsg, err)
			}

					},
					Annotations: map[string]string{
						annotation.SidecarStatus.Name: `{"revision":"test-anno"}`,
					},
				},
			},
			expectedRevision: "test-anno",
		},
	}
	for i, c := range cases {
		t.Run(fmt.Sprintf("case %d %s", i, c.name), func(t *testing.T) {
			assert.Equal(t, c.expectedRevision, extractRevisionFromPod(c.pod))
		})
	}
}

func Test_getNamespaces(t *testing.T) {

But in most of the cases where we need to do something like this, we want the model just to **filter/remove** some of the data as in this example.

## Do not Separate Schemas

Now, there are some cases where you might want to have the **same schema for input and output**.

Probably the main use case for this is if you already have some autogenerated client code/SDKs and you don't want to update all the autogenerated client code/SDKs yet, you probably will want to do it at some point, but maybe not right now.

 * static factory method. Neither are semantics of mutation methods such as {@code
 * someList.add(obj)} checked. For more detailed discussion of supported and unsupported cases, see
 * {@link #testEquals}, {@link #testNulls} and {@link #testSerializable}.
 *
 * <p>For testing against the returned instances from a static factory class, such as
 *
 * <pre>
 * interface Book {...}

You can combine normal FastAPI *path operations* with GraphQL on the same application.

/// tip

**GraphQL** solves some very specific use cases.

It has **advantages** and **disadvantages** when compared to common **web APIs**.

Make sure you evaluate if the **benefits** for your use case compensate the **drawbacks**. 🤓

///

## GraphQL Libraries

# Response - Change Status Code

You probably read before that you can set a default [Response Status Code](../tutorial/response-status-code.md){.internal-link target=_blank}.

But in some cases you need to return a different status code than the default.

## Use case

For example, imagine that you want to return an HTTP status code of "OK" `200` by default.

func convPartErrToInt(err error) int {
	err = unwrapAll(err)
	switch err {
	case nil:
		return checkPartSuccess
	case errFileNotFound, errFileVersionNotFound:
		return checkPartFileNotFound
	case errFileCorrupt:
		return checkPartFileCorrupt
	case errVolumeNotFound:
		return checkPartVolumeNotFound
	case errDiskNotFound:
		return checkPartDiskNotFound
	default:
		return checkPartUnknown
	}
}