@classmethod<EOL><INDENT>def fromkeys(cls, iterable, value=None):<DEDENT>
d = cls()<EOL>for key in iterable:<EOL><INDENT>d[key] = value<EOL><DEDENT>return d<EOL>
OD.fromkeys(S[, v]) -> New ordered dictionary with keys from S
        and values equal to v (which defaults to None).