code: def _add_version_doc():
      from inspect import getmembers, isfunction
      from pyflink.table import expressions
  
      for o in getmembers(expressions):
          if isfunction(o[1]) and not o[0].startswith("_"):
              add_version_doc(o[1], "1.12.0")
  
imports: from typing import Union
  from pyflink import add_version_doc
  from pyflink.java_gateway import get_gateway
  from pyflink.table.expression import Expression, _get_java_expression, TimePointUnit, JsonOnNull
  from pyflink.table.types import _to_java_data_type, DataType
  from pyflink.table.udf import UserDefinedFunctionWrapper
  from pyflink.util.java_utils import to_jarray, load_java_class
label_desc: Use image node_id 7 for calling a global function with example usage: _add_version_doc() without return types