func (_ *SigningMethodNone) Sign(_ []byte, _ interface{}) (Signature, error) {
	return nil, nil
}
Sign helps implement the SigningMethod interface.
package crypto
import (
	"crypto"
	"encoding/json"
	"hash"
	"io"
)
func init() {
	crypto.RegisterHash(crypto.Hash(0), h)
}
func h() hash.Hash {
	return &f{Writer: nil}
}
type f struct{ io.Writer }
func (_ *f) Sum(b []byte) []byte { return nil }
func (_ *f) Reset() {}
func (_ *f) Size() int { return -1 }
func (_ *f) BlockSize() int { return -1 }
var Unsecured = &SigningMethodNone{
	Name: "none",
	Hash: crypto.Hash(0),
}
type SigningMethodNone struct {
	Name string
	Hash crypto.Hash
	_    struct{}
}
func (_ *SigningMethodNone) Verify(_ []byte, _ Signature, _ interface{}) error {
	return nil
}