When using group_rows_by, is there a way to get the group annotated with how many rows went into that group?
Ex. when grouping by gene and aggregating the entries.
dataset_result = dataset.group_rows_by(dataset.gene).aggregate( n_non_ref = hl.agg.count_where(dataset.GT.is_non_ref()) )
I would also like the dataset_result to have a row-value which is the number of SNPs grouped into that gene.
I expect the same question applies to the group_cols_by.