code: def generate_large_file(path, size):
      with open(path, "wb") as f:
          f.seek(size - 1)
          f.write(b"\0")
      assert size == os.stat(path).st_size
  
imports: import sys
  import h2o
  import os
  import tempfile
  from tests import pyunit_utils
label_desc: Use image node_id 1 for calling a global function with example usage: generate_large_file(path, size) without return types