code: def export_vcf(mt_path):
      mt = hl.read_matrix_table(mt_path)
      out = hl.utils.new_temp_file(extension="vcf.bgz")
      hl.export_vcf(mt, out)
  
imports: import hail
  from .resources import *
  from .utils import benchmark
label_desc: Use image node_id 3 for calling a global function with example usage: export_vcf(mt_path) without return types