toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (nonce != null) 'nonce': nonce!,
if (requestHash != null) 'requestHash': requestHash!,
if (requestPackageName != null)
'requestPackageName': requestPackageName!,
if (timestampMillis != null) 'timestampMillis': timestampMillis!,
};