prompt (Net::SSH::PromptMethods::Clear)

        # File lib/net/ssh/prompt.rb, line 64
    64:       def prompt(prompt, echo=true)
    65:         @seen_warning ||= false
    66:         if !echo && !@seen_warning
    67:           $stderr.puts "Text will be echoed in the clear. Please install the HighLine or Termios libraries to suppress echoed text."
    68:           @seen_warning = true
    69:         end
    70:
    71:         $stdout.print(prompt)
    72:         $stdout.flush
    73:         $stdin.gets.chomp
    74:       end