code: def large_range_matrix_table_sum():
      mt = hl.utils.range_matrix_table(
          n_cols=500000, n_rows=10000, n_partitions=2500
      )
      mt = mt.annotate_entries(x=mt.col_idx + mt.row_idx)
      mt.annotate_cols(foo=hl.agg.sum(mt.x))._force_count_cols()
  
imports: from os import path
  from tempfile import TemporaryDirectory, NamedTemporaryFile
  import hail
  from .resources import *
  from .utils import benchmark
label_desc: Use image node_id 36 for calling a global function with example usage: large_range_matrix_table_sum() without return types