'Set the password and protection options of the worksheet.
Args:
password: An optional password string.
options:  A dictionary of worksheet objects to protect.
Returns:
Nothing.'

def protect(self, password='', options=None):

    if self.chart:
        self.chart.protection = True
    else:
        self.protection = True
    if (not options):
        options = {}
    options = options.copy()
    options['sheet'] = False
    options['content'] = True
    options['scenarios'] = True
    super(Chartsheet, self).protect(password, options)
