type crypto/ed25519.Options

4 uses

	crypto/ed25519 (current package)
		ed25519.go#L94: 	if opts, ok := opts.(*Options); ok {
		ed25519.go#L124: type Options struct {
		ed25519.go#L134: func (o *Options) HashFunc() crypto.Hash { return o.Hash }
		ed25519.go#L282: func VerifyWithOptions(publicKey PublicKey, message, sig []byte, opts *Options) error {