How to use for datasets with narrow range?

Hi, I'm trying to adapt this great tool to my needs. One thing this involves is making it less hard-coded to its inputs (number of inputs, data ranges etc.). I made some progress but think I hit problem I don't know how to solve.
If my data has a relatively narrow range (e.g. values from 0 to 10) then I don't think the current tool can handle this. Let's say we want about 50 bins, so each bin would be approx 0.2 wide. But the ay_histogram() function takes an option for the bin_width that is supposed to be an integer value and so can't be less than 1.
Is there a way to resolve this?