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: mixin_test.rb
    path of file: ./repos/limiter/test/limiter
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require "test_helper"

    
    def test_method_is_rate_limited_across_instances
      assert_elapsed(COUNT.to_f / RATE - 1) do
        COUNT.times do
          MixinTestClass.new.tick
        end
      end
    end