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Returns true for any value that’s a valid RBXScriptSignal.
That covers RemoteEvent.OnServerEvent, RemoteEvent.OnClientEvent, BindableEvent.Event, Folder.ChildAdded, and the rest. Most commonly used to confirm a value is a valid RBXScriptSignal before passing it to firesignal or other signal functions.

Parameters

Returns

boolean

Example

Always check parameters and return values when working with this library function.