Problems with L.groupLayer

[JakMac02]

Hello,
I've tried to create an app with PyQT i PyQTlet. Unfortunatelly I have several problems.

I wrote that code:

self.LayerGroup = L.layerGroup(markers)
self.map.addLayer(self.LayerGroup)
(markers is an array of Markers)

After turning on the code I have that error: TypeError: LayerGroup.init() takes 1 positional argument but 2 were given
I don't know how to fix it.

Thank you in advance for your help:)