🙈 fix IPywidgets bug, see #32

Author: jonasvdd

plotly_resampler/figure_resampler/utils.py

@@ -7,7 +7,7 @@
 try: # Fails when IPywidgets is not installed
     from plotly.basewidget import BaseFigureWidget
 except (ImportError, ModuleNotFoundError):
-    BaseFigureWidget = None
+    BaseFigureWidget = type(None)
 
 from typing import Any