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.rb
    path of file: ./repos/truffleruby/lib/gems/gems/minitest-5.16.3/lib/minitest
    
    the code of the file until where you have to start completion: class MockExpectationError < StandardError; end # :n
    
    def __call name, data # :nodoc:
      case data
      when Hash then
        args   = data[:args].inspect[1..-2]
        kwargs = data[:kwargs]
        if kwargs && !kwargs.empty? then
          args << ", " unless args.empty?
          args << kwargs.inspect[1..-2]
        end