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function onRootConstructed view code 

onRootConstructed(
    listener: (root: Root) -> ()
): () -> ()

Called just before a constructing root is returned. The listener callback receives the root that is constructing.

Listener callbacks are expected to be non-yielding and infallible.

Parameters

listener: (root: Root) -> ()

Fired just before a constructing root is returned. The listener callback receives the root that is constructing.

Returns

() -> ()

A callback that when called removes the listener.