try!

# File activesupport/lib/active_support/core_ext/object/try.rb, line 20
    def try!(method_name = nil, *args, &b)
      if method_name.nil? && block_given?
        if b.arity == 0
          instance_eval(&b)
        else
          yield self
        end
      else
        public_send(method_name, *args, &b)
      end
    end