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Ruby Ruby Modules Include and Extend Being Included

Are we doing a a method override when we write the self.included block?

I would deeply understand what we've done when we wrote

def self.included(klass)
  puts "#{klass} has been included"

We've made a method overriding?

PS: We shouldn't have written that the class has included the Fetcher method, instead that the class has been included?