How do I filter to a one megabase range of a matrix table

Hail Query & hailctl
1

How would you extend this to a 1 megabase region centered on 1:139120?

2

Could do:

interval_of_interest = hl.locus('1', 139120).window(1_000_000, 1_000_000)
filter_rows(interval_of_interest.contains(mt.locus))
3

Thanks so much!