--- protected_methods
--- protected_methods([inherited_too])  ruby 1.8 feature

    Υ֥ȤǤ protected ᥽å̾ΰʸ
    ֤ޤ

    ruby 1.8 feature: Ǥ褦ˤʤޤ
    inherited_too Ǥ(ǥեȤϿ)ѡ饹
    줿᥽åɤоݤˤʤޤ

    Module#protected_instance_methods [Module/protected_instance_methods],
    ⻲ȤƤ

