def METHOD_NAME(self, *args, **kwargs):
    """
    Update line objects settings.
    """
    super(Line, self).METHOD_NAME(*args, **kwargs)
    tracer = self.getOption('tracer')
    if tracer and not self.isOptionValid('xtracer'):
        self.setOption('xtracer', True)
    if tracer and not self.isOptionValid('ytracer'):
        self.setOption('ytracer', True)