How to add fields to node type

hi everyone

when I define node type with predicates how can I update struct of node. par example , I had define predicate type event which is structured like that :
type Event {
but after that I want to add another fields to be like that
Type Event {
my question is : how to define struct type predicate from client golang and update structure dynamically ?

Hello @Aya_Ben_Ali
Check these tests out you might find what you are looking for here:

Also take a look at this: