method
extended
![Some documentation Importance_1](https://d2vfyqvduarcvs.cloudfront.net/images/importance_1.png?1349367920)
extended(p1)
private
The equivalent of included, but for extended modules.
module A def self.extended(mod) puts "#{self} extended in #{mod}" end end module Enumerable extend A end # => prints "A extended in Enumerable"