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: input_device.rb
    path of file: ./repos/htty/lib/htty/cli
    
    the code of the file until where you have to start completion: require 'htty'
require 'readline'

module HTTY::CLI::InputDevice
  def self.new(display)
    if STDIN.tty?
     
    
    def commands
      loop do
        begin
          command_line = ''
          while command_line.empty? do
            if (command_line = Readline.readline(@display.formatted_prompt, true)).nil?
              raise Interrupt
            end
            if whitespace?(command_line) || repeat?(command_line)
              Readline::HISTORY.pop
            end
            command_line.chomp!
            command_line.strip!
          end