def is_datetime64_any_dtype(arr_or_dtype):
if arr_or_dtype is None:<EOL><INDENT>return False<EOL><DEDENT>return (is_datetime64_dtype(arr_or_dtype) or<EOL>is_datetime64tz_dtype(arr_or_dtype))<EOL>
Check whether the provided array or dtype is of the datetime64 dtype.

Parameters
----------
arr_or_dtype : array-like
    The array or dtype to check.

Returns
-------
boolean
    Whether or not the array or dtype is of the datetime64 dtype.

Examples
--------
>>> is_datetime64_any_dtype(str)
False
>>> is_datetime64_any_dtype(int)
False
>>> is_datetime64_any_dtype(np.datetime64)  # can be tz-naive
True
>>> is_datetime64_any_dtype(DatetimeTZDtype("ns", "US/Eastern"))
True
>>> is_datetime64_any_dtype(np.array(['a', 'b']))
False
>>> is_datetime64_any_dtype(np.array([1, 2]))
False
>>> is_datetime64_any_dtype(np.array([], dtype=np.datetime64))
True
>>> is_datetime64_any_dtype(pd.DatetimeIndex([1, 2, 3],
                            dtype=np.datetime64))
True