code: def insert(originalfile, first_line, description):
      with open(originalfile) as f:
          f1 = f.readline()
          if f1.find(first_line) < 0:
              docs = first_line + description + f1
              with open("newfile.txt", "w") as f2:
                  f2.write(docs)
                  f2.write(f.read())
              os.rename("newfile.txt", originalfile)
          else:
              print("already inserted")
  
label_desc: Use image node_id 1 for calling a global function with example usage: insert(originalfile, first_line, description) without return types