You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: variables.rb
    path of file: ./repos/spec/language/fixtures
    
    the code of the file until where you have to start completion: module VariablesSpecs
  class ParAsgn
    attr_accessor :x

    def initialize
      @x = 0
    end

    def inc
      @x += 1
    end

    def to_ary
      [1,2,3,4]
    end
  end


    
    def [](k) k end
    def []=(k, v) [k, v] end
  end

  def self.reverse_foo(a, b)
    return b, a
  end

  class ArrayLike
    def initialize(array)
      @array = array
    end

    def to_a
      @array
    end
  end