@loader_option()
def defer(loadopt, key):
    return loadopt.set_column_strategy(
        (key, ),
        {"deferred": True, "instrument": True}
    )
Indicate that the given column-oriented attribute should be deferred, e.g.
dataset/ETHPy150Open goFrendiAsgard/kokoropy/kokoropy/packages/sqlalchemy/orm/strategy_options.py/defer