code: def test_insert_snippet():
      with tempfile.TemporaryFile() as f:
          xtr = SupportMatrixExtractor("x", "22.02", f.name)
          xtr.insert_snippet("release", "99.99")
          assert "99.99" in xtr.data["x"]["22.02"].get("release")
  
file_path: Merlin/docs/test_extractor.py
imports: import json
  import os
  import shutil
  import tempfile
  from pathlib import Path
  from extractor import SupportMatrixExtractor
label_desc: Use image node_id 6 for calling a global function with example usage: test_insert_snippet() without return types