## ⚙️ `Response` 🔢

👆 💪 📣 🔢 🆎 `Response` 👆 *➡ 🛠️ 🔢* (👆 💪 🍪 & 🎚).

& ⤴️ 👆 💪 ⚒ `status_code` 👈 *🔀* 📨 🎚.

```Python hl_lines="1  9  12"
{!../../../docs_src/response_change_status_code/tutorial001.py!}
```

& ⤴️ 👆 💪 📨 🙆 🎚 👆 💪, 👆 🛎 🔜 ( `dict`, 💽 🏷, ♒️).

& 🚥 👆 📣 `response_model`, ⚫️ 🔜 ⚙️ ⛽ & 🗜 🎚 👆 📨.

 *
 * @author Hayward Chan
 */
@ElementTypesAreNonnullByDefault
final class SingletonImmutableSet<E> extends ImmutableSet<E> {

  // This reference is used both by the custom field serializer, and by the
  // GWT compiler to infer the elements of the lists that needs to be
  // serialized.
  //
  // Although this reference is non-final, it doesn't change after set creation.
  E element;

The handler function has this signature.

Sample handler:
```go
    handler :=  func(ctx context.Context, payload []byte, in <-chan []byte, out chan<- []byte) *RemoteErr {
        fmt.Println("Got request with initial payload", p, "from", GetCaller(ctx context.Context))
        fmt.Println("Subroute:", GetSubroute(ctx))
        for {
            select {

#include <list>
#include <set>
#include <string>
#include <unordered_map>
#include <vector>

#include "tensorflow/c/c_api.h"

// clang-format off
// Required for IS_MOBILE_PLATFORM
#include "tensorflow/core/platform/platform.h"
// clang-format on

#include "tensorflow/c/tf_status_internal.h"
#include "tensorflow/c/tf_tensor_internal.h"
#if !defined(IS_MOBILE_PLATFORM) && !defined(IS_SLIM_BUILD)

Samuel Colvin <******@****.***> 1586320658 +0100

        # TF 2.12 + Clang (containers are the same, but env vars in configs.bzl are different)
        map sigbuild-r2.12-clang 2.12-python3.9
        map sigbuild-r2.12-clang-python3.8 2.12-python3.8
        map sigbuild-r2.12-clang-python3.9 2.12-python3.9
        map sigbuild-r2.12-clang-python3.10 2.12-python3.10
        map sigbuild-r2.12-clang-python3.11 2.12-python3.11
        # TF 2.13

     */
    public static final int FILE_NOTIFY_CHANGE_DIR_NAME = 0x00000002;

    /**
     * Both <tt>FILE_NOTIFY_CHANGE_FILE_NAME</tt> and <tt>FILE_NOTIFY_CHANGE_DIR_NAME</tt>
     */
    public static final int FILE_NOTIFY_CHANGE_NAME = 0x00000003;

    /**
     * Any attribute change in the watched directory or subtree causes a change notification wait operation to return.
     */

    /**
     * 
     */
    public static final int FILE_NOTIFY_CHANGE_LAST_ACCESS = 0x20;
    /**
     * 
     */
    public static final int FILE_NOTIFY_CHANGE_CREATION = 0x40;
    /**
     * 
     */
    public static final int FILE_NOTIFY_CHANGE_EA = 0x80;
    /**
     * 
     */
    public static final int FILE_NOTIFY_CHANGE_SECURITY = 0x100;
    /**
     * 
     */

)

// Manager will contain all the connections to the grid.
// It also handles incoming requests and routes them to the appropriate connection.
type Manager struct {
	// ID is an instance ID, that will change whenever the server restarts.
	// This allows remotes to keep track of whether state is preserved.
	ID uuid.UUID

	// Immutable after creation, so no locks.
	targets map[string]*Connection

	// serverside handlers.

            """
        ) {
            assertHasErrors(
                "Field nonFinalField: Nullability breaking change.",
                "Field finalField: From non-nullable to nullable breaking change.",
                "Method com.example.Source.foo(): From non-null returning to null returning breaking change."
            )
            assertHasNoWarning()
            assertHasNoInformation()
        }
    }

    @Test