module_mixin.rb
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user_service.rb
array_methods.rb
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exception_rescue.rb
module_mixin.rb
regex_match.rb
lambda_proc.rb
safe_navigation.rb
metaprogramming.rb
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module_mixin.rb
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module Validatable↵
def valid?↵
!@errors&.any?↵
end↵
end↵
class User; include Validatable; end
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