def __init__(self, io):
self._constants = {}<EOL>"""<STR_LIT>"""<EOL>self._old_columns = {}<EOL>"""<STR_LIT>"""<EOL>self._constants_filename = None<EOL>"""<STR_LIT>"""<EOL>self._prefix = None<EOL>"""<STR_LIT>"""<EOL>self._class_name = '<STR_LIT>'<EOL>"""<STR_LIT>"""<EOL>self._labels = {}<EOL>"""<STR_LIT>"""<EOL>self._io = io<EOL>"""<STR_LIT>"""<EOL>
Object constructor.

:param pystratum.style.PyStratumStyle.PyStratumStyle io: The output decorator.