Vamos discutir sobre `@lru_cache` logo mais.

Por enquanto, você pode considerar `get_settings()` como uma função normal.

///

E então podemos declarar essas configurações como uma dependência na função de operação da rota e utilizar onde for necessário.

//// tab | Python 3.9+

```Python hl_lines="17  19-21"
{!> ../../docs_src/settings/app02_an_py39/main.py!}
```

////

//// tab | Python 3.8+

// ValueSource represents the source of a config parameter value.
type ValueSource uint8

// Constants for ValueSource
const (
	ValueSourceAbsent ValueSource = iota // this is an error case
	ValueSourceDef
	ValueSourceCfg
	ValueSourceEnv
)

// ResolveConfigParam returns the effective value of a configuration parameter,

	"cmd/internal/obj/s390x"
	"cmd/internal/obj/wasm"
	"cmd/internal/obj/x86"
	"fmt"
	"strings"
)

// Pseudo-registers whose names are the constant name without the leading R.
const (
	RFP = -(iota + 1)
	RSB
	RSP
	RPC
)

// Arch wraps the link architecture object with more architecture-specific information.
type Arch struct {
	*obj.LinkArch
	// Map of instruction names to enumeration.

// Handlers can be registered with a static subroute.
// Do NOT remove or change the order of existing handlers.
const (
	// handlerInvalid is reserved to check for uninitialized values.
	handlerInvalid HandlerID = iota
	HandlerLockLock
	HandlerLockRLock
	HandlerLockUnlock
	HandlerLockRUnlock
	HandlerLockRefresh
	HandlerLockForceUnlock
	HandlerWalkDir
	HandlerStatVol
	HandlerDiskInfo
	HandlerNSScanner
	HandlerReadXL

}

// RQErrType reason for read quorum error.
type RQErrType int

const (
	// RQInsufficientOnlineDrives - not enough online drives.
	RQInsufficientOnlineDrives RQErrType = 1 << iota
	// RQInconsistentMeta - inconsistent metadata.
	RQInconsistentMeta
)

func (t RQErrType) String() string {
	switch t {
	case RQInsufficientOnlineDrives:
		return "InsufficientOnlineDrives"

// the buffer, so that UnreadRune and UnreadByte can check for
// invalid usage. opReadRuneX constants are chosen such that
// converted to int they correspond to the rune size that was read.
type readOp int8

// Don't use iota for these, as the values need to correspond with the
// names and comments, which is easier to see when being explicit.
const (
	opRead      readOp = -1 // Any other read operation.
	opInvalid   readOp = 0  // Non-read operation.

	return cmd
}

// Level is an enumeration of all supported log levels.
type Level int

const (
	defaultLoggerName = "level"
)

const (
	// OffLevel disables logging
	OffLevel Level = iota
	// CriticalLevel enables critical level logging
	CriticalLevel
	// ErrorLevel enables error level logging
	ErrorLevel
	// WarningLevel enables warning level logging
	WarningLevel

        },

        },

}

// Authorization type.
//
//go:generate stringer -type=authType -trimprefix=authType $GOFILE
type authType int

// List of all supported auth types.
const (
	authTypeUnknown authType = iota
	authTypeAnonymous
	authTypePresigned
	authTypePresignedV2
	authTypePostPolicy
	authTypeStreamingSigned
	authTypeSigned
	authTypeSignedV2
	authTypeJWT
	authTypeSTS
	authTypeStreamingSignedTrailer