toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (forwardingPath != null) 'forwardingPath': forwardingPath!,
if (ipv4Address != null) 'ipv4Address': ipv4Address!,
if (ipv6Address != null) 'ipv6Address': ipv6Address!,
if (kind != null) 'kind': kind!,
};