How to make partial_ratio_alignment to find the short str in the long str with few extra chars?

[monchin]

I tried to search for similar discussions and issues but searched nothing, I'm not sure what keywords to use, so if it is duplicated, please forgive me and give me the solution link.

For example, I have a short str a = "ABCDEFGH" and a long str b = "blah blah ABCDxEFGH blah blah". I want to use rapidfuzz to get the start and end index of the most similar part of the short str of the long str. However, when I use pra = fuzz.partial_ratio_alignment(a, b), the result of b[pra.dest_start:pra.dest_end] is ABCDxEFG rather than ABCDxEFGH. Is there any way to make the program to know that ABCDxEFGH is the most similar part rather than ABCDxEFG？