code: def test_bug1945():
      pdf = fitz.open(f"{scriptdir}/resources/bug1945.pdf")
      buffer_ = io.BytesIO()
      pdf.save(buffer_, clean=True)
  
imports: import io
  import os
  import fitz
  import pickle
label_desc: Use image node_id 16 for calling a global function with example usage: test_bug1945() without return types