code: def encoding_wrappers() -> List[str]:
      return sorted(
          iter_objects(
              alt.channels, restrict_to_subclass=alt.SchemaBase
          )
      )
  
file_path: altair/tools/generate_api_docs.py
imports: import sys
  import types
  from os.path import abspath, dirname, join
  from typing import Final, Optional, Iterator, List
  from types import ModuleType
  import altair
label_desc: Use image node_id 3 for calling a global function with example usage: encoding_wrappers() and returns: sorted