# File lib/factory_girl/factory.rb, line 210
210:   def callback(name, &block)
211:     unless [:after_build, :after_create, :after_stub].include?(name.to_sym)
212:       raise InvalidCallbackNameError, "#{name} is not a valid callback name. Valid callback names are :after_build, :after_create, and :after_stub"
213:     end
214:     @attributes << Attribute::Callback.new(name.to_sym, block)
215:   end