code: def __init__(cls, *args: Any, **kwargs: Any):
      super().__init__(*args, **kwargs)
      missing: list[str] = getattr(cls, "__abstractmethods__", [])
      if missing:
          missing_meth = ", ".join(missing)
          raise TypeError(
              f"{cls.__name__} has not implemented abstract methods {missing_meth}"
          )
  
imports: from __future__ import annotations
  from arch.compat.pandas import is_datetime64_any_dtype
  from abc import ABCMeta
  from collections.abc import Hashable, Sequence
  import datetime
  from functools import cached_property
  from typing import Any, Literal, overload
  import numpy
  from pandas import DataFrame, DatetimeIndex, Index, NaT, Series, Timestamp, to_datetime
  from arch.typing import AnyPandas, ArrayLike, DateLike, NDArray
label_desc: Use image node_id 1 to create a new ConcreteClassMeta object from inherited base classes: ABCMeta with example: obj = ConcreteClassMeta(cls)