def pairwise_distances_argmin_min(
X, Y, *, axis=1, metric="euclidean", metric_kwargs=None
):
    --- snip ---
    else:
        # TODO: once PairwiseDistancesArgKmin supports sparse input 
        # matrices and 32 bit, we won't need to fallback to 
        # pairwise_distances_chunked anymore. Turn off check for 
        # finiteness because this is costly and because array
        # shave already been validated.
    --- snip ---