# File lib/pry/commands/cat/exception_formatter.rb, line 14
      def format
        check_for_errors
        set_file_and_dir_locals(backtrace_file, _pry_, _pry_.current_context)
        code = decorate(Pry::Code.from_file(backtrace_file).
                                    between(*start_and_end_line_for_code_window).
                                    with_marker(backtrace_line))
        "#{header}#{code}"
      end