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: typing_test.rb
    path of file: ./repos/steep/test
    
    the code of the file until where you have to start completion: require_relat
    
  def test_1
    source = parse_ruby("123")
    node = source.node

    typing = Steep::Typing.new(source: source, root_context: context)

    type = parse_type("::String")

    typing.add_typing(node, type, context)

    assert_equal type, typing.type_of(node: node)
    assert_equal context, typing.context_at(line: 1, column: 2)
  end