// Check for marshaler.
	if val.CanInterface() && typ.Implements(marshalerType) {
		return p.marshalInterface(val.Interface().(Marshaler), defaultStart(typ, finfo, startTemplate))
	}
	if val.CanAddr() {
		pv := val.Addr()
		if pv.CanInterface() && pv.Type().Implements(marshalerType) {
			return p.marshalInterface(pv.Interface().(Marshaler), defaultStart(pv.Type(), finfo, startTemplate))
		}
	}