--- alias_method(new, old)

    ᥽åɤ̾ޤ
    alias Ȥΰ㤤ϰʲ̤Ǥ

      * ᥽å̾ʸޤ Symbol ǻꤹ
      * Хѿ̾Ĥ뤳ȤϤǤʤ
      * alias ϹʸʤΤǥ᥽åɤǤϻȤʤ

    self ֤ޤ

