issue
fun issue(userName: String?, memberPublicKey: PublicKey, orgCertificate: OrgCertificate, orgPrivateKey: PrivateKey, expiryDate: ZonedDateTime, startDate: ZonedDateTime = ZonedDateTime.now()): MemberCertificate
Issue a new member certificate.
Parameters
user
The user's name if the member is a user, or null if it's a bot.
member
The member's public key.
org
The organisation's certificate.
org
The organisation's private key.
expiry
The certificate's expiry date.
start
The certificate's start date.