type Enum struct{}

type Message struct {
	// Resolver is used to determine the list of extension fields to test with.
	// If nil, this defaults to using protoregistry.GlobalTypes.
	Resolver interface {
		FindExtensionByName(field protoreflect.FullName) (protoreflect.ExtensionType, error)
		FindExtensionByNumber(message protoreflect.FullName, field protoreflect.FieldNumber) (protoreflect.ExtensionType, error)
		RangeExtensionsByMessage(message protoreflect.FullName, f func(protoreflect.ExtensionType) bool)
	}

	// UnmarshalOptions are respected for every Unmarshal call this package
	// does. The Resolver and AllowPartial fields are overridden.
	UnmarshalOptions proto.UnmarshalOptions
}