ReadonlychangedThe changed signal.
ReadonlyisReadonlytypeThe type of this object.
Dispose of the resources held by the object.
If the object's dispose method is called more than once, all
calls made after the first will be a no-op.
It is undefined behavior to use any functionality of the object after it has been disposed unless otherwise explicitly noted.
Get the current value, or undefined if it has not been set.
Set the value.
Interface for an Observable object that represents an opaque JSON value.