Hello, I've made a contribution to Numpy: unique_2D() which determines unique values and counts of a multi-dimensional array for each row (last dimension). As this is my first contribution, I expect some feedback before being added to the final version. The request can be found here: https://github.com/numpy/numpy/pull/28064 I hope to get some constructive feedback such that I can be more effective in contributing to Numpy in the future. Kind regards, Mark