_, ok = b.value.([]byte)
	case []Value:
		_, ok = b.value.([]Value)
	default:
		ok = reflect.TypeOf(v.value) == reflect.TypeOf(b.value)
	}
	return ok
}

// ToBool returns the bool value; second return value refers to if the bool
// conversion succeeded.
func (v Value) ToBool() (val bool, ok bool) {
	val, ok = v.value.(bool)
	return
}

// ToTimestamp returns the timestamp value if present.

  }

  /**
   * Returns an unmodifiable view of the difference of two multisets. In the returned multiset, the
   * count of each element is the result of the <i>zero-truncated subtraction</i> of its count in
   * the second multiset from its count in the first multiset, with elements that would have a count
   * of 0 not included. The iteration order of the returned multiset matches that of the element set

   * <p><b>Note:</b> this method is now unnecessary and should be treated as deprecated; use the
   * equivalent {@link Integer#compare} method instead.
   *
   * @param a the first {@code int} to compare
   * @param b the second {@code int} to compare
   * @return a negative value if {@code a} is less than {@code b}; a positive value if {@code a} is
   *     greater than {@code b}; or zero if they are equal
   */

  }

  /**
   * Returns an unmodifiable view of the difference of two multisets. In the returned multiset, the
   * count of each element is the result of the <i>zero-truncated subtraction</i> of its count in
   * the second multiset from its count in the first multiset, with elements that would have a count
   * of 0 not included. The iteration order of the returned multiset matches that of the element set

		c <- err
	}()

	select {
	case err := <-c:
		if err == nil {
			t.Error("error expected")
		} else if err != io.ErrNoProgress {
			t.Error("unexpected error:", err)
		}
	case <-time.After(time.Second):
		t.Error("test timed out (endless loop in ReadByte?)")
	}
}

// A StringReader delivers its data one string segment at a time via Read.
type StringReader struct {
	data []string
	step int
}

#### `Dict`

Pour définir un `dict`, il faut lui passer 2 paramètres, séparés par une virgule (`,`).

Le premier paramètre de type est pour les clés et le second pour les valeurs du dictionnaire (`dict`).

{*../../docs_src/python_types/tutorial008.py hl[1,4] *}

Dans cet exemple :

* La variable `prices` est de type `dict` :

	}

	for _, testCase := range testCases {
		u, err := url.Parse(testCase.releaseChecksumURL)
		if err != nil {
			t.Fatal(err)
		}

		result, err := downloadReleaseURL(u, 1*time.Second, "")
		switch {
		case testCase.expectedErr == nil:
			if err != nil {
				t.Fatalf("error: expected: %v, got: %v", testCase.expectedErr, err)
			}
		case err == nil:

    // If duplicates are allowed, this IdentityHashMap will record the final Entry for each
    // duplicated key. We will use this final Entry to overwrite earlier slots in the entries array
    // that have the same key. Then a second pass will remove all but the first of the slots that
    // have this Entry. The value in the map becomes false when this first entry has been copied, so
    // we know not to copy the remaining ones.

		// If its available, we haven't tried to install in over 5s, reset our hits and return
		i.hits = 0
		return
	}
	// Otherwise, wait. We only wait up to 1s.
	sleep.UntilContext(ctx, min(res.Delay(), time.Second))
	// Increment our hits. If we are spamming this loop, we will hit this many times as we continually are sending >1 RPS
	i.hits++

Cela va valider les données, montrer une erreur claire si ces dernières ne sont pas valides, et documenter le paramètre dans le schéma `OpenAPI` de cette *path operation*.

## Rajouter plus de validation

Vous pouvez aussi rajouter un second paramètre `min_length` :

{* ../../docs_src/query_params_str_validations/tutorial003.py hl[9] *}

## Ajouter des validations par expressions régulières