'(typ, [[QUOTAROOT responses...], [QUOTA responses...]]) = getquotaroot(mailbox)
Get the list of quota roots for the named mailbox.'

def getquotaroot(self, mailbox, **kw):

    (typ, dat) = self._simple_command('GETQUOTAROOT', mailbox)
    (typ, quota) = self._untagged_response(typ, dat, 'QUOTA')
    (typ, quotaroot) = self._untagged_response(typ, dat, 'QUOTAROOT')
    return self._deliver_dat(typ, [quotaroot, quota], kw)
