## mark a section (Learn more)

module ClassMethods def run puts "I'm running..." end end class Thing extend ClassMethods end Thing.run module InstanceMethods def jump puts "jump around, jump around, jump up and get down!" end end class OtherThing include InstanceMethods end some_object = OtherThing.new some_object.jump class Widget end widget1 = Widget.new widget1.extend(InstanceMethods) widget1.jump widget2 = Widget.new widget2.jump

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