code: def interleaved_dtype(dtypes: list[DtypeObj]) -> DtypeObj | None:
      """
      Find the common dtype for `blocks`.
  
      Parameters
      ----------
      blocks : List[DtypeObj]
  
      Returns
      -------
      dtype : np.dtype, ExtensionDtype, or None
          None is returned when `blocks` is empty.
      """
      if not len(dtypes):
          return None
  
      return find_common_type(dtypes)
  
imports: from __future__ import annotations
  from typing import Literal, TypeVar, final
  import numpy
  from pandas._typing import ArrayLike, AxisInt, DtypeObj, Shape
  from pandas.errors import AbstractMethodError
  from pandas.core.dtypes.cast import find_common_type, np_can_hold_element
  from pandas.core.base import PandasObject
  from pandas.core.indexes.api import Index, default_index
label_desc: Use image node_id 1 for calling a global function with example usage: interleaved_dtype(dtypes) and returns: find_common_type, None