code: def table_aggregate_downsample_worst_case():
      ht = hl.utils.range_table(250_000_000, 8)
      ht.aggregate(hl.agg.downsample(ht.idx, -ht.idx))
  
imports: from os import path
  from tempfile import TemporaryDirectory
  import hail
  from .resources import *
  from .utils import benchmark
label_desc: Use image node_id 30 for calling a global function with example usage: table_aggregate_downsample_worst_case() without return types