def METHOD_NAME(self, name, value, attrs=None, renderer=None):
    html = super(UserSelectionWidget, self).METHOD_NAME(name, value, attrs, renderer)
    html += mark_safe(
        self.html_template
        % {
            'id': attrs['id'],
            'num_hints': getattr(settings, 'NUM_HINTS', 10),
        }
    )
    return html