@event.listens_for(Table, 'column_reflect')
def setup_epoch(inspector, table, column_info):
    if isinstance(column_info['type'], types.DateTime):
        column_info['type'] = EpochType()
@event.listens_for(Table, 'column_reflect')
def setup_epoch(inspector, table, column_info):
    if isinstance(column_info['type'], types.DateTime):
        column_info['type'] = EpochType()