@classmethod<EOL><INDENT>def _from_factorized(cls, values, original):<DEDENT>
raise AbstractMethodError(cls)<EOL>
Reconstruct an ExtensionArray after factorization.

Parameters
----------
values : ndarray
    An integer ndarray with the factorized values.
original : ExtensionArray
    The original ExtensionArray that factorize was called on.

See Also
--------
pandas.factorize
ExtensionArray.factorize