return &buf
		},
	}
)

// unexpectedFileMode is a sentinel (and bogus) os.FileMode
// value used to represent a syscall.DT_UNKNOWN Dirent.Type.
const unexpectedFileMode os.FileMode = os.ModeNamedPipe | os.ModeSocket | os.ModeDevice

func parseDirEnt(buf []byte) (consumed int, name []byte, typ os.FileMode, err error) {
	// golang.org/issue/15653
	dirent := (*syscall.Dirent)(unsafe.Pointer(&buf[0]))

				}
			}
		})
	}
}

func TestPax(t *testing.T) {
	// Create an archive with a large name
	fileinfo, err := os.Stat("testdata/small.txt")
	if err != nil {
		t.Fatal(err)
	}
	hdr, err := FileInfoHeader(fileinfo, "")
	if err != nil {
		t.Fatalf("os.Stat: %v", err)
	}
	// Force a PAX long name to be written
	longName := strings.Repeat("ab", 100)
	contents := strings.Repeat(" ", int(hdr.Size))

            val type = performanceTestBuildSpec.type
            val os = performanceTestBuildSpec.os
            val arch = performanceTestBuildSpec.arch
            val buildTypeThis = this
            val performanceTestTaskNames = getPerformanceTestTaskNames(performanceSubProject, testProjects, performanceTestTaskSuffix)
            applyPerformanceTestSettings(os = os, arch = arch, timeout = type.timeout)

            .filter { it.os == os }
            .forEach {
                buildType(FlakyTestQuarantine(model, stage, it))
            }
    })

class FlakyTestQuarantine(
    model: CIBuildModel,
    stage: Stage,
    testCoverage: TestCoverage,
) : OsAwareBaseGradleBuildType(os = testCoverage.os, stage = stage, init = {
        val os = testCoverage.os
        val arch = testCoverage.arch

    buildType.steps {
        extraSteps()
        killProcessStep(buildType, KILL_PROCESSES_STARTED_BY_GRADLE, os, arch, executionMode = ExecutionMode.ALWAYS)
        checkCleanM2AndAndroidUserHome(os, buildType)
    }

    applyDefaultDependencies(model, buildType)
}

private fun BaseGradleBuildType.addRetrySteps(
    model: CIBuildModel,
    gradleTasks: String,
    os: Os = Os.LINUX,

* validação de dados
* serialização de dados
* documentação de dados, etc.

Isso funciona da mesma forma que com os modelos Pydantic. E na verdade é alcançado da mesma maneira por baixo dos panos, usando Pydantic.

/// info | Informação

Lembre-se de que dataclasses não podem fazer tudo o que os modelos Pydantic podem fazer.

Então, você ainda pode precisar usar modelos Pydantic.

//
// $ MINIO_ENDPOINT=http://localhost:9000 go run gen-oidc-sts-cred.go

import (
	"context"
	"fmt"
	"log"
	"net/http"
	"os"

	cr "github.com/minio/minio-go/v7/pkg/credentials"
	cmd "github.com/minio/minio/cmd"
)

func main() {
	ctx := context.Background()

	endpoint := os.Getenv("MINIO_ENDPOINT")
	if endpoint == "" {

    name: Go ${{ matrix.go-version }} on ${{ matrix.os }} - healing
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        go-version: [1.24.x]
        os: [ubuntu-latest]
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-go@v5
        with:
          go-version: ${{ matrix.go-version }}
          check-latest: true
      - name: Build on ${{ matrix.os }}
        if: matrix.os == 'ubuntu-latest'

        }
        if (result && os.getVersion() != null) {
            result = determineVersionMatch(os.getVersion());
        }
        return result;
    }

    private boolean ensureAtLeastOneNonNull(ActivationOS os) {
        return os.getArch() != null || os.getFamily() != null || os.getName() != null || os.getVersion() != null;
    }

    private boolean determineVersionMatch(String version) {

// license that can be found in the LICENSE file.

package main

import (
	"flag"
	"fmt"
	"log"
	"os"
	"strings"

	"cmd/internal/buildid"
	"cmd/internal/telemetry/counter"
)

func usage() {
	fmt.Fprintf(os.Stderr, "usage: go tool buildid [-w] file\n")
	flag.PrintDefaults()
	os.Exit(2)
}

var wflag = flag.Bool("w", false, "write build ID")

func main() {
	log.SetPrefix("buildid: ")