}

	lparen := p.expect(token.LPAREN)
	p.exprLev++
	var list []ast.Expr
	var ellipsis token.Pos
	for p.tok != token.RPAREN && p.tok != token.EOF && !ellipsis.IsValid() {
		list = append(list, p.parseRhs())
		if p.tok == token.ELLIPSIS {
			ellipsis = p.pos
			p.next()
		}
		if p.tok != token.COMMA {
			break
		}
		p.next()
	}
	p.exprLev--

	}

	// 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.

	if p.trace {
		defer un(trace(p, "ArrayType"))
	}

	if len == nil {
		p.exprLev++
		// always permit ellipsis for more fault-tolerant parsing
		if p.tok == token.ELLIPSIS {
			len = &ast.Ellipsis{Ellipsis: p.pos}
			p.next()
		} else if p.tok != token.RBRACK {
			len = p.parseRhs()
		}
		p.exprLev--
	}
	if p.tok == token.COMMA {

		return true
	case callExprType:
		// For calls, the Ellipsis fields (token.Pos) must
		// match since that is how f(x) and f(x...) are different.
		// Check them here but fall through for the remaining fields.
		p := pattern.Interface().(*ast.CallExpr)
		v := val.Interface().(*ast.CallExpr)
		if p.Ellipsis.IsValid() != v.Ellipsis.IsValid() {
			return false
		}
	}

	p := reflect.Indirect(pattern)

	LOR   // ||
	ARROW // <-
	INC   // ++
	DEC   // --

	EQL    // ==
	LSS    // <
	GTR    // >
	ASSIGN // =
	NOT    // !

	NEQ      // !=
	LEQ      // <=
	GEQ      // >=
	DEFINE   // :=
	ELLIPSIS // ...

	LPAREN // (
	LBRACK // [
	LBRACE // {
	COMMA  // ,
	PERIOD // .

	RPAREN    // )
	RBRACK    // ]
	RBRACE    // }
	SEMICOLON // ;
	COLON     // :
	operator_end

	keyword_beg

.submenu { z-index: 3; }
/* Right-click menu */
#action-menu {
  max-width: 15em;
}
/* Right-click menu title */
#action-title {
  display: block;
  padding: 0.5em 1em;
  background: #888;
  text-overflow: ellipsis;
  overflow: hidden;
}
/* Internal canvas used to measure text size when picking fonts */
#textsizer {
  position: absolute;
  bottom: -100px;

	"::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",

		return 1 << nCommentGroup
	case *ast.CompositeLit:
		return 1 << nCompositeLit
	case *ast.DeclStmt:
		return 1 << nDeclStmt
	case *ast.DeferStmt:
		return 1 << nDeferStmt
	case *ast.Ellipsis:
		return 1 << nEllipsis
	case *ast.EmptyStmt:
		return 1 << nEmptyStmt
	case *ast.ExprStmt:
		return 1 << nExprStmt
	case *ast.Field:
		return 1 << nField
	case *ast.FieldList:
		return 1 << nFieldList

```

!!! info "Informação"
    Se você nunca viu os `...` antes: é um valor único especial, faz <a href="https://docs.python.org/3/library/constants.html#Ellipsis" class="external-link" target="_blank">parte do Python e é chamado "Ellipsis"</a>.

Dessa forma o **FastAPI** saberá que o parâmetro é obrigatório.

## Lista de parâmetros de consulta / múltiplos valores

			break
		}
		if s, _ := n.X.(*ast.Ident); s != nil {
			// the array/slice object is a single identifier
			if call, _ := n.High.(*ast.CallExpr); call != nil && len(call.Args) == 1 && !call.Ellipsis.IsValid() {
				// the high expression is a function call with a single argument
				if fun, _ := call.Fun.(*ast.Ident); fun != nil && fun.Name == "len" {
					// the function called is "len"