How can I listen for the "mode change" event ?

[TiffanyGreenweig]

Summary
How can I listen for the "mode change" event? thanks

Version
"@toast-ui/react-image-editor": "^3.15.2",

It's not working
`
editorInstance.on('modeChange', handleDrawingMode)

or

editorInstance.on('mode', handleDrawingMode)

`