toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (cert != null) 'cert': cert!,
if (createTime != null) 'createTime': createTime!,
if (expireTime != null) 'expireTime': expireTime!,
if (serialNumber != null) 'serialNumber': serialNumber!,
if (sha1Fingerprint != null) 'sha1Fingerprint': sha1Fingerprint!,
};