code: def main():
      if sys.argv[1] == "push":
          push()
      elif sys.argv[1] == "merge-upstream-into":
          prid = int(sys.argv[2])
          hijack(prid)
          subprocess.check_call(["git", "fetch", "upstream"])
          subprocess.check_call(
              ["git", "merge", "upstream/develop", "--no-edit"]
          )
          push()
      else:
          prid = int(sys.argv[1])
          hijack(prid)
  
imports: import json
  import subprocess
  import sys
  import smart_open
label_desc: Use image node_id 4 for calling a global function with example usage: main() without return types