best way to split a paragraph(lorotext)

[sunnyawake5]

i'm using LoroText to represent a paragraph.
what's the best way to split a LoroText? or provide an api like this:
loroText.deleteRight(off):Delta[] //return the deleted part as Delta

[zxch3n]

Sounds nice. Maybe we can provide a more generic method like sliceDelta(start, end): Delta[].

You can implement it in your application code at the moment.