key to the hosting object's attribute map, at which an action is expected to be found.
Abstract method which must be implemented by creating the actual UGen
s
during expansion.
Abstract method which must be implemented by creating the actual UGen
s
during expansion. This method is at most called once during graph
expansion
the expanded object (depending on the type parameter U
)
A UGen that invokes an action once the surrounding graph has completed. The action is called with a
Try[Unit]
as its universevalue
.key to the hosting object's attribute map, at which an action is expected to be found.