import "github.com/lestrrat-go/jwx/internal/base64"
base64.go
func Decode(src []byte) ([]byte, error)
func DecodeString(src string) ([]byte, error)
func Encode(src []byte) []byte
func EncodeToString(src []byte) string
func EncodeToStringStd(src []byte) string
func EncodeUint64ToString(v uint64) string