# Declare Request Example Data

You can declare examples of the data your app can receive.

Here are several ways to do it.

## Extra JSON Schema data in Pydantic models

You can declare `examples` for a Pydantic model that will be added to the generated JSON Schema.

=== "Python 3.10+ Pydantic v2"

    ```Python hl_lines="13-24"
    {!> ../../../docs_src/schema_extra_example/tutorial001_py310.py!}
    ```

Alejandra <******@****.***> 1711071731 -0500

Alejandra <******@****.***> 1711071731 -0500

Nils Lindemann <******@****.***> 1711829993 +0100

Kani Kim <******@****.***> 1707482146 +0900

	ipv6address := netutils.ParseIPSloppy("2001:db8::1")

	tests := []struct {
		name    string
		generic apiserveroptions.ServerRunOptions
		extra   Extra
		wantErr bool
	}{
		{
			name: "master endpoint reconciler - IPv4 families",
			extra: Extra{
				EndpointReconcilerType:       "master-count",
				PrimaryServiceClusterIPRange: *ipv4cidr,
			},
			generic: apiserveroptions.ServerRunOptions{

		c.ControlPlane.Complete(),
		&c.Extra,
	}

	serviceIPRange, apiServerServiceIP, err := options.ServiceIPRange(cfg.Extra.ServiceIPRange)
	if err != nil {
		klog.Fatalf("Error determining service IP ranges: %v", err)
	}
	if cfg.Extra.ServiceIPRange.IP == nil {
		cfg.Extra.ServiceIPRange = serviceIPRange
	}
	if cfg.Extra.APIServerServiceIP == nil {
		cfg.Extra.APIServerServiceIP = apiServerServiceIP
	}

			}
			debugPrintf("releaseLock %s: reset havePtr (extra=%d)\n", c.name, state.extra())

			// Optimization: only bother loading a new pointer
			// if we have a value to add to it.
			c.ptr = counterPtr{nil, nil}
			if state.extra() != 0 {
				c.ptr = c.file.lookup(c.name)
				debugPrintf("releaseLock %s: ptr=%v\n", c.name, c.ptr)
			}
		}

		if extra := state.extra(); extra != 0 && c.ptr.count != nil {

				"X-Remote-Group-2":      {"two-a", "two-b"},
				"X-Remote-extra-1-key1": {"alfa", "bravo"},
				"X-Remote-Extra-1-Key2": {"charlie", "delta"},
				"X-Remote-Extra-1-":     {"india", "juliet"},
				"X-Remote-extra-2-":     {"kilo", "lima"},
				"X-Remote-extra-2-Key1": {"echo", "foxtrot"},
				"X-Remote-Extra-2-key2": {"golf", "hotel"},
			},
		},

		"extra prefix matches case-insensitive with unrelated headers": {

            extraComp(MavenPublication) {
                from components.java
                groupId "extra.group"
                artifactId "extra-comp"
                version "extra"
            }
            extra(MavenPublication) {
                groupId "extra.group"
                artifactId "extra"
                version "extra"
            }
        }
    }
}
""")

        when: