def is_float_dtype(arr_or_dtype):
return _is_dtype_type(arr_or_dtype, classes(np.floating))<EOL>
Check whether the provided array or dtype is of a float dtype.

This function is internal and should not be exposed in the public API.

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

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

Examples
--------
>>> is_float_dtype(str)
False
>>> is_float_dtype(int)
False
>>> is_float_dtype(float)
True
>>> is_float_dtype(np.array(['a', 'b']))
False
>>> is_float_dtype(pd.Series([1, 2]))
False
>>> is_float_dtype(pd.Index([1, 2.]))
True