Common Runtime Type: Ticket

let Ticket: {
  channelKey: nothing|text
  createdAt: instant
  dynamic: {text->*}
  externalReference: nothing|text
  items: [{
    createdAt: instant
    dynamic: {text->*}
    relations: [{
      nodeId: uuid
      relationKey: text
    }]
    ticketItemId: uuid
    typeKey: text
  }]
  relations: [{
    nodeId: uuid
    relationKey: text
  }]
  tags: {number->text}
  ticketId: uuid
  ticketNumber: text
  ticketState: 'open'|'completed'|'rejected'
  typeKey: nothing|text
}