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: mock_spec.rb
    path of file: ./repos/ferrocarril/spec-runner/spec/mspec/spec/mocks
    
    the code of the file until where you have to start completion: # This is a bit awkward. Currently the way to verify that the
# opposites are true (for example a failure when the specified
# arguments are NOT provided) is to simply alter the particular
# spec to a failure condition.
require 's
    
    def @mock.already_here() :hey end
    @mock.should respond_to(:already_here)
    replaced_name = Mock.replaced_name(@mock, :already_here)
    Mock.install_method @mock, :already_here
    @mock.should respond_to(replaced_name)

    Mock.cleanup
    @mock.should_not respond_to(replaced_name)
    @mock.should respond_to(:already_here)
    @mock.already_here.should == :hey
  end