<img src="/img/tutorial/generate-clients/image08.png">

## Benefits { #benefits }

When using the automatically generated clients, you would get **autocompletion** for:

* Methods.
* Request payloads in the body, query parameters, etc.
* Response payloads.

You would also have **inline errors** for everything.

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package main

import (
	"encoding/json"
	"errors"
	"fmt"
	"log"
	"net/http"
)

func writeErrorResponse(w http.ResponseWriter, err error) {
	w.WriteHeader(http.StatusBadRequest)
	json.NewEncoder(w).Encode(map[string]string{
		"reason": fmt.Sprintf("%v", err),

 */

package jcifs.dcerpc;

import jcifs.CIFSException;
import jcifs.smb.WinError;
import jcifs.util.Hexdump;

/**
 * Exception class for DCE/RPC related errors.
 * This exception is thrown when DCE/RPC protocol errors occur.
 */
public class DcerpcException extends CIFSException implements DcerpcError, WinError {

    /**
     *
     */

		t.Fatal(err)
	}
	left, err := v.UnmarshalMsg(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after UnmarshalMsg(): %q", len(left), left)
	}

	left, err = msgp.Skip(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)
	}
}

func BenchmarkMarshalMsgmetacache(b *testing.B) {

// Package ioutil implements some I/O utility functions which are not covered
// by the standard library.
package ioutil

import (
	"errors"
	"io"
)

// ErrOverread is returned to the reader when the hard limit of HardLimitReader is exceeded.
var ErrOverread = errors.New("input provided more bytes than specified")

// HardLimitReader returns a Reader that reads from r

// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"bytes"
	"context"
	"encoding/json"
	"errors"
	"fmt"
	"io"
	"maps"
	"net/http"
	"os"
	"slices"
	"sort"
	"strconv"
	"strings"
	"time"
	"unicode/utf8"

	"github.com/klauspost/compress/zip"
	"github.com/minio/madmin-go/v3"

package gorm

import (
	"context"
	"database/sql"
	"database/sql/driver"
	"errors"
	"reflect"
	"sync"
	"time"

	"gorm.io/gorm/internal/stmt_store"
)

type PreparedStmtDB struct {
	Stmts stmt_store.Store
	Mux   *sync.RWMutex
	ConnPool
}

// NewPreparedStmtDB creates and initializes a new instance of PreparedStmtDB.
//
// Parameters:

	if expectedCredentials.accessKey != actualCredential.accessKey {
		t.Errorf("Test %d: AccessKey mismatch: Expected \"%s\", got \"%s\"", testNum, expectedCredentials.accessKey, actualCredential.accessKey)
	}
	if !expectedCredentials.scope.date.Equal(actualCredential.scope.date) {
		t.Errorf("Test %d: Date mismatch:Expected \"%s\", got \"%s\"", testNum, expectedCredentials.scope.date, actualCredential.scope.date)
	}

	var locksHeld int64
	if locksHeld, reply = l.lockMap[args.Resources[0]]; !reply { // No lock is held on the given name
		return false, fmt.Errorf("Unlock attempted on an unlocked entity: %s", args.Resources[0])
	}
	if reply = locksHeld == WriteLock; !reply { // Unless it is a write lock
		return false, fmt.Errorf("Unlock attempted on a read locked entity: %s (%d read locks active)", args.Resources[0], locksHeld)
	}

	driveTimeoutErrorsMD = NewCounterMD(driveTimeoutErrorsTotal,
		"Total timeout errors on a drive", allDriveLabels...)
	driveIOErrorsMD = NewCounterMD(driveIOErrorsTotal,
		"Total I/O errors on a drive", allDriveLabels...)
	driveAvailabilityErrorsMD = NewCounterMD(driveAvailabilityErrorsTotal,
		"Total availability errors (I/O errors, timeouts) on a drive",
		allDriveLabels...)
	driveWaitingIOMD = NewGaugeMD(driveWaitingIO,