```

////

//// tab | Python 3.8+

```Python hl_lines="1"
{!> ../../docs_src/request_forms_and_files/tutorial001_an.py!}
```

////

//// tab | Python 3.8+ non-Annotated

/// tip

Prefer to use the `Annotated` version if possible.

///

```Python hl_lines="1"
{!> ../../docs_src/request_forms_and_files/tutorial001.py!}
```

////

        continue;
      }
      return false;
    }
    return true;
  }

  /**
   * Returns the non-negative index value of the alpha character {@code c}, regardless of case. Ie,
   * 'a'/'A' returns 0 and 'z'/'Z' returns 25. Non-alpha characters return a value of 26 or greater.
   */
  private static int getAlphaIndex(char c) {

**Here's why we have this policy:** We want to focus on the work that benefits
the whole community, e.g., fixing bugs and adding features. Individual support
should be sought on Stack Overflow or other non-GitHub channels. It helps us to

		{"ad", "", ObjectInfo{}, BucketNameInvalid{Bucket: "ad"}, false},
		// Test cases with valid but non-existing bucket names (Test number 5-6).
		{"abcdefgh", "abc", ObjectInfo{}, BucketNotFound{Bucket: "abcdefgh"}, false},
		{"ijklmnop", "efg", ObjectInfo{}, BucketNotFound{Bucket: "ijklmnop"}, false},
		// Test cases with valid but non-existing bucket names and invalid object name (Test number 7-8).

 * support even a "normal" `TypeParameter<T>` when `<T>` has a nullable bound. (See the discussion
 * on TypeToken.where.) So, in the interest of failing fast and encouraging the user to switch to a
 * non-null bound if possible, let's require a non-null bound here.
 *
 * TODO(cpovirk): Elaborate on "wouldn't behave as users might expect."
 */
public abstract class TypeParameter<T> extends TypeCapture<T> {

  final TypeVariable<?> typeVariable;

      if (atomic == null) {
        atomic = map.putIfAbsent(key, new AtomicLong(delta));
        if (atomic == null) {
          return delta;
        }
        // atomic is now non-null; fall through
      }

      while (true) {
        long oldValue = atomic.get();
        if (oldValue == 0L) {
          // don't compareAndSet a zero

 * <i>similar</i>.
 *
 * <h3>Nullability</h3>
 *
 * <p>A converter always converts {@code null} to {@code null} and non-null references to non-null
 * references. It would not make sense to consider {@code null} and a non-null reference to be
 * "different representations of the same information", since one is distinguishable from

```

////

//// tab | Python 3.10+ non-Annotated

/// tip

Prefer to use the `Annotated` version if possible.

///

```Python hl_lines="18-25"
{!> ../../docs_src/schema_extra_example/tutorial003_py310.py!}
```

////

//// tab | Python 3.8+ non-Annotated

/// tip

Prefer to use the `Annotated` version if possible.

///

message NonResourceAttributes {
  // Path is the URL path of the request
  // +optional
  optional string path = 1;

  // Verb is the standard HTTP verb
  // +optional
  optional string verb = 2;
}

// NonResourceRule holds information that describes a rule for the non-resource
message NonResourceRule {

   * The caller is responsible for <a
   * href="https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#multipart-form-data">replacing
   * any unpaired carriage return or line feed characters with a CR+LF pair</a> on any non-file
   * inputs before escaping them with this escaper.
   *
   * <p>When escaping a String, the following rules apply:
   *
   * <ul>