)

// SelectObjectFormat specifies the format of the underlying data
type SelectObjectFormat int

const (
	// SelectFmtUnknown - unknown format (default value)
	SelectFmtUnknown SelectObjectFormat = iota
	// SelectFmtCSV - CSV format
	SelectFmtCSV
	// SelectFmtJSON - JSON format
	SelectFmtJSON
	// SelectFmtSIMDJSON - SIMD JSON format
	SelectFmtSIMDJSON
	// SelectFmtParquet - Parquet format
	SelectFmtParquet
)

		if _, ok := err.(BackendDown); ok {
			return err
		}
		return tierPermErr{
			Op:  tierDelete,
			Err: err,
		}
	}
	return err
}

type tierOp uint8

const (
	_ tierOp = iota
	tierGet
	tierPut
	tierDelete
)

func (op tierOp) String() string {
	switch op {
	case tierGet:
		return "GET"
	case tierPut:
		return "PUT"
	case tierDelete:
		return "DELETE"
	}

package cmd

import (
	"context"
	"errors"
	"fmt"
	"path"
	"strings"
	"time"
)

type scanStatus uint8

const (
	scanStateNone scanStatus = iota
	scanStateStarted
	scanStateSuccess
	scanStateError

	// Time in which the initiator of a scan must have reported back.
	metacacheMaxRunningAge = time.Minute

	"strings"
	"sync/atomic"
	"testing"

	"github.com/minio/minio/internal/logger"
	"github.com/minio/minio/internal/logger/target/types"
	"github.com/minio/pkg/v2/logger/message/log"
)

const (
	logMessage = iota
	errorMessage
	fatalMessage
)

// T is the test logger.
var T = &testLogger{}

func init() {
	logger.AddSystemTarget(context.Background(), T)
}

type testLogger struct {

type ScanToken rune

const (
	// Asm defines some two-character lexemes. We make up
	// a rune/ScanToken value for them - ugly but simple.
	LSH          ScanToken = -1000 - iota // << Left shift.
	RSH                                   // >> Logical right shift.
	ARR                                   // -> Used on ARM for shift type 3, arithmetic right shift.

// debugMsg is a debug message for testing purposes.
// may only be used for tests.
type debugMsg int

const (
	debugPrint = false
	debugReqs  = false
)

const (
	debugShutdown debugMsg = iota
	debugKillInbound
	debugKillOutbound
	debugWaitForExit
	debugSetConnPingDuration
	debugSetClientPingDuration
	debugAddToDeadline
	debugIsOutgoingClosed
)

//go:generate stringer -type=STSErrorCode -trimprefix=Err $GOFILE

// Error codes, non exhaustive list - http://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRoleWithSAML.html
const (
	ErrSTSNone STSErrorCode = iota
	ErrSTSAccessDenied
	ErrSTSMissingParameter
	ErrSTSInvalidParameterValue
	ErrSTSWebIdentityExpiredToken
	ErrSTSClientGrantsExpiredToken
	ErrSTSInvalidClientGrantsToken
	ErrSTSMalformedPolicyDocument

type SDSWriter interface {
	PrintSecretItems([]SecretItem) error
	PrintDiffs([]SecretItemDiff) error
}

type Format int

const (
	JSON Format = iota
	TABULAR
)

// includeConfigType is a flag to indicate whether to include the config type in the output
var includeConfigType bool

func SetPrintConfigTypeInSummary(p bool) {
	includeConfigType = p
}

    También puedes notar que **FastAPI** es lo suficientemente inteligente para darse cuenta de que el parámetro de path `item_id` es un parámetro de path y que `q` no lo es, y por lo tanto es un parámetro de query.

!!! note "Nota"
    FastAPI sabrá que `q` es opcional por el `= None`.

	if c.RoleArn == "" && legacyArn {
		return errRoleArnMissingLegacy
	}
	return nil
}

// Types of replication
const (
	UnsetReplicationType Type = 0 + iota
	ObjectReplicationType
	DeleteReplicationType
	MetadataReplicationType
	HealReplicationType
	ExistingObjectReplicationType
	ResyncReplicationType
	AllReplicationType
)