code: def vl_version_for_vl_convert() -> str:
      from ..vegalite import SCHEMA_VERSION
  
      # Compute VlConvert's vl_version string (of the form 'v5_2')
      # from SCHEMA_VERSION (of the form 'v5.2.0')
      return "_".join(SCHEMA_VERSION.split(".")[:2])
  
file_path: altair/altair/utils/_importers.py
imports: from types import ModuleType
  from packaging.version import Version
  from importlib.metadata import version
label_desc: Use image node_id 3 for calling a global function with example usage: vl_version_for_vl_convert() and returns: str