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: type_application_test.rb
    path of file: ./repos/steep/test/ast/node
    
    the code of the file until where you have to start completion: require_relative "../../test_helper"

class AST__Node__TypeApplicationTest < Minitest::Test
  include TestHelper
  include FactoryHelper
  inclu
    
  def test_sequence_type
    with_checker do
      loc = buffer("$ String, Integer")

      app = Steep::AST::Node::TypeApplication.parse(loc)

      assert_equal "String, Integer", app.type_str
      app.types(nil, checker, []).tap do |types|
        assert_equal 2, types.size

        assert_equal parse_type("::String"), types[0]
        assert_equal "String", types[0].location.source

        assert_equal parse_type("::Integer"), types[1]
        assert_equal "Integer", types[1].location.source
      end
    end
  end