code: def test_insert_font():
      doc = fitz.open(f"{scriptdir}/resources/v110-changes.pdf")
      page = doc[0]
      i = page.insert_font()
      print(f"page.insert_font() => {i}")
  
imports: import io
  import os
  import fitz
  import pickle
label_desc: Use image node_id 24 for calling a global function with example usage: test_insert_font() without return types