NullableGraphRef<E extends Entity, C extends GraphInput, U extends GraphInput>.update constructor
NullableGraphRef<E extends Entity, C extends GraphInput, U extends GraphInput>.update (])
Implementation
NullableGraphRef.update(String id, U update,
[this._recordType, this.refLabel])
: _update = update,
isDisconnect = false,
_linkedId = id,
_create = null;