def attr_configurable_int *args, &block
      trans = attr_configurable_wrap lambda { |v| v.to_i }, block
      attr_configurable_single(*args, &trans)
    end
def attr_configurable_int *args, &block
      trans = attr_configurable_wrap lambda { |v| v.to_i }, block
      attr_configurable_single(*args, &trans)
    end
Creates readable and writeable attributes that are automatically
 converted into integers.