namespace tensorflow {
namespace ops {
namespace {

constexpr absl::string_view kEllipsis = "...";

// Returns the axis (possibly negative) corresponding to a label.
//
// Returns the axis index of the axis label if it is before an ellipsis (or if
// the ellipsis is not present), and the negative index if it occurs after the
// ellipsis. E.g. index of `b` in `ab...cd`, is `1`, but that of `c` is `-2`.
//

			tok(n.TokPos, len(n.Tok.String())))

	case *ast.CallExpr:
		children = append(children,
			tok(n.Lparen, len("(")),
			tok(n.Rparen, len(")")))
		if n.Ellipsis != 0 {
			children = append(children, tok(n.Ellipsis, len("...")))
		}

	case *ast.CaseClause:
		if n.List == nil {
			children = append(children,
				tok(n.Case, len("default")))
		} else {
			children = append(children,

		Obj     *Object   // denoted object, or nil. Deprecated: see Object.
	}

	// An Ellipsis node stands for the "..." type in a
	// parameter list or the "..." length in an array type.
	//
	Ellipsis struct {
		Ellipsis token.Pos // position of "..."
		Elt      Expr      // ellipsis element type (parameter lists only); or nil
	}

	// A BasicLit node represents a literal of basic type.

	}

	// If didn't parse enough, expand ellipsis.
	if i < 16 {
		if ellipsis < 0 {
			return Addr{}, parseAddrError{in: in, msg: "address string too short"}
		}
		n := 16 - i
		for j := i - 1; j >= ellipsis; j-- {
			ip[j+n] = ip[j]
		}
		clear(ip[ellipsis : ellipsis+n])
	} else if ellipsis >= 0 {
		// Ellipsis must represent at least one 0 group.

	"::ffff:0:0%0",
	// IPv6 (without ellipsis) with too many fields for trailing embedded IPv4.
	"ffff:ffff:ffff:ffff:ffff:ffff:ffff:192.168.140.255",
	// IPv6 (with ellipsis) with too many fields for trailing embedded IPv4.
	"ffff::ffff:ffff:ffff:ffff:ffff:ffff:192.168.140.255",
	// IPv6 with invalid embedded IPv4.
	"::ffff:192.168.140.bad",
	// IPv6 with multiple ellipsis ::.
	"fe80::1::1",

```

!!! info
    Si vous n'avez jamais vu ce `...` auparavant : c'est une des constantes natives de Python <a href="https://docs.python.org/fr/3/library/constants.html#Ellipsis" class="external-link" target="_blank">appelée "Ellipsis"</a>.

Cela indiquera à **FastAPI** que la présence de ce paramètre est obligatoire.

## Liste de paramètres / valeurs multiples via Query

    ```

!!! info "Дополнительная информация"
    Если вы ранее не сталкивались с `...`: это специальное значение, <a href="https://docs.python.org/3/library/constants.html#Ellipsis" class="external-link" target="_blank">часть языка Python и называется "Ellipsis"</a>.

    Используется в Pydantic и FastAPI для определения, что значение требуется обязательно.

Таким образом, **FastAPI** определяет, что параметр является обязательным.

    ```

!!! info
    If you hadn't seen that `...` before: it is a special single value, it is <a href="https://docs.python.org/3/library/constants.html#Ellipsis" class="external-link" target="_blank">part of Python and is called "Ellipsis"</a>.

    It is used by Pydantic and FastAPI to explicitly declare that a value is required.

This will let **FastAPI** know that this parameter is required.

  *rhs_named_label_count = rhs_count;
  return labels;
}

// Generate new unnamed labels for the expression.
// For example, if we have GenerateLabels(2, {'b', 'c', 'd'}) for "...xy"
// We will have "dcxy" for the ellipsis expression since it's rank 4,
// we will have dcbxy if it's rank 5.
std::string GenerateLabels(int count,
                           const llvm::SetVector<char>& available_labels) {
  std::string new_labels(count, 0);

        or hasattr(origin, "__get_pydantic_core_schema__")
    )


def field_annotation_is_scalar(annotation: Any) -> bool:
    # handle Ellipsis here to make tuple[int, ...] work nicely
    return annotation is Ellipsis or not field_annotation_is_complex(annotation)


def field_annotation_is_scalar_sequence(annotation: Union[Type[Any], None]) -> bool:
    origin = get_origin(annotation)