You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: bytes.go
    path of file: ./repos/k6/vendor/github.com/goccy/go-json/internal/decoder
    
    the code of the file until where you have to start completion: package decoder

import (
	"encoding/base64"
	"fmt"
	"unsafe"

	"github.com/goccy/go-json/internal/errors"
	"github.com/goccy/go-json/internal/runtime"
)

type bytesDecoder struct {
	typ           *runtime.Type
	sliceDecoder  Decoder
	stringDecoder *stringDecoder
	structName    string
	fieldName     string
}

func byteUnmarshalerSliceDecoder(typ *runtime.Type, structName string, fieldName string) 
    
func (d *bytesDecoder) decodeBinary(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) ([]byte, int64, error) {
	buf := ctx.Buf
	cursor = skipWhiteSpace(buf, cursor)
	if buf[cursor] == '[' {
		if d.sliceDecoder == nil {
			return nil, 0, &errors.UnmarshalTypeError{
				Type:   runtime.RType2Type(d.typ),
				Offset: cursor,
			}
		}
		c, err := d.sliceDecoder.Decode(ctx, cursor, depth, p)
		if err != nil {
			return nil, 0, err
		}
		return nil, c, nil
	}
	return d.stringDecoder.decodeByte(buf, cursor)
}