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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def report_stderr(host, stderr):
 """Take a stderr and print it's lines to output if lines are present. :param host: the host where the process is running :type host: str :param stderr: the std error of that process :type stderr: paramiko.channel.Channel """

    lines = stderr.readlines()
    if lines:
        print("STDERR from {host}:".format(host=host))
        for line in lines:
            print(line.rstrip(), file=sys.stderr)