<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def debug(message, *args, **kwargs):
 """ debug output goes to stderr so you can still redirect the stdout to a file or another program. Controlled by the JUT_DEBUG environment variable being present """

    if 'end' in kwargs:
        end = kwargs['end']
    else:
        end = '\n'

    if DEBUG: 
        if len(args) == 0:
            sys.stderr.write(message)
        else:
            sys.stderr.write(message % args)

        sys.stderr.write(end)
        sys.stderr.flush()