module A
  attr_writer :x
end

class B
  class << self
    attr_accessor :z
  end

  attr :a, true
  attr :a2, false
  attr :a3
  # Docstring
  attr_reader :b, :c, :d
  attr_writer :e
  attr_accessor 'f'

  attr_accessor :z
end

class C
  def foo; end
  attr_writer :foo

  def bar=(value); end
  attr_reader :bar
end