'Creates a group.'

@huawei_utils.check_whether_operate_consistency_group
def create_group(self, context, group):

    model_update = {'status': fields.GroupStatus.AVAILABLE}
    opts = self._get_group_type(group)
    if self._check_volume_type_support(opts, 'hypermetro'):
        metro = hypermetro.HuaweiHyperMetro(self.client, self.rmt_client, self.configuration)
        metro.create_consistencygroup(group)
        return model_update
    return model_update
