    # File lib/chef/shell_out.rb, line 113
        def initialize(*command_args)
          @stdout, @stderr = '', ''
          @live_stream = nil
          @command_log_level = :debug
          @command_log_prepend = nil
          @environment = DEFAULT_ENVIRONMENT
          @cwd = nil
          @valid_exit_codes = [0]

          if command_args.last.is_a?(Hash)
            parse_options(command_args.pop)
          end

          @command = command_args.size == 1 ? command_args.first : command_args
        end