Hey @sahil1234 @hiydavid
I think the lr_find() functionality was slightly changed later. You need to add a function parameter called suggest_funcs to get the desired tuple.
For example, if you want to make the chapter 5 notebook give you lr_min, lr_steep, you can try this:
lr_min, lr_steep = learn.lr_find(suggest_funcs=(minimum, steep)).
You can also try valley (which is what lr_find() returns by default; a tuple with only one item) and slide. You can check those details out here
You can also check out the lr_find() docs here.