A replacement of the Signature Help functionality from the original Atom-IDE / Nuclide package developed by Facebook.
atom-ide-signature-help in Atom.
Install an IDE language package that you would like to use:
You can also search for packages in Atom.
busy-signalpackage in Atom, which is used for signaling background tasks.
Please see the contributing guidelines.
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.