code: def skip_if_gdb_unavailable():
      if not is_gdb_available():
          pytest.skip("gdb command unavailable")
  
imports: from functools import lru_cache
  import os
  import re
  import shutil
  import subprocess
  import sys
  import pytest
  import pyarrow
label_desc: Use image node_id 4 for calling a global function with example usage: skip_if_gdb_unavailable() without return types