func NewRestorer() *Restorer {
	return &Restorer{
		Map:  newMap(),
		Fset: token.NewFileSet(),
	}
}
NewRestorer returns a restorer.
package decorator
import (
	"fmt"
	"go/ast"
	"go/format"
	"go/token"
	"io"
	"os"
	"sort"
	"strconv"
	"strings"
	"github.com/dave/dst"
	"github.com/dave/dst/decorator/resolver"
)