How to use lr_find method in fastai version 1.0 correctly

Hello all,
I cannot use lr_find method in fastai version 1.0 correctly. Can you explain how to use this method such as the method in previous version?

Learn.recorder.lr_find

Check docs.fast.ai

I have checked the docs but the method is not working as previous one. I have tested it on the same datasets and the results are not matched!.

What is happening?

the graph of the previous lr_find is different than the new one. I cannot understand why this is happening on the same data set and same network architecture.