toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (delegatedProjectNumber != null)
'delegatedProjectNumber': delegatedProjectNumber!,
if (instanceId != null) 'instanceId': instanceId!,
if (returnSecureToken != null) 'returnSecureToken': returnSecureToken!,
if (token != null) 'token': token!,
};