def create_csn(self, name, description=None, client_token=None)

{
    "metadata":{...}, # 公共描述信息
    "csn_id":"csn-34t94wnsazpbi3wd"
}

def update_csn(self, csn_id, name=None, description=None, client_token=None)

{
    "metadata":{...}, # 公共描述信息
}

def delete_csn(self, csn_id, client_token=None):

{
    "metadata":{...}, # 公共描述信息
}

def list_csn(self, marker=None, max_keys=None)

{
    "metadata":{...}, # 公共描述信息
    "marker":"",
    "is_truncated":false,
    "max_keys":1000,
    "csns":[
        {
            "name":"wxktest",
            "description":"",
            "csn_id":"csn-34t94wnsazpbi3wd",
            "status":"active",
            "instance_num":2,
            "csn_bp_num":1
        }
    ]
}

def get_csn(self, csn_id)

{   
    "metadata":{...}, # 公共描述信息
    "name":"csn_test",
    "description":"csn_test description",
    "csn_id":"csn-34t94wnsazpbi3wd",
    "status":"active",
    "instance_num":2,
    "csn_bp_num":1
}

def attach_instance(self, csn_id, instance_type, instance_id, instance_region, instance_account_id=None, client_token=None)

{
    "metadata":{...}, # 公共描述信息
}

def detach_instance(self, csn_id, instance_type, instance_id, instance_region, instance_account_id=None, client_token=None)

{
    "metadata":{...}, # 公共描述信息
}

def list_instance(self, csn_id, marker=None, max_keys=None)

{
    "metadata":{...}, # 公共描述信息
    "marker":"",
    "is_truncated":false,
    "max_keys":1000,
    "instances":[
        {
            "attach_id":"tgwAttach-ycsx58278drf41sm",
            "instance_type":"vpc",
            "instance_id":"vpc-zep9hag85vap",
            "instance_name":"test_vpc_01",
            "instance_region":"bj",
            "instance_account_id":"60a4f129eb0e47f0a110ea27b44b6073",
            "status":"attached"
        },
        {
            "attach_id":"tgwAttach-m8bydk547r9pjeiv",
            "instance_type":"vpc",
            "instance_id":"vpc-w37tyjur64p5",
            "instance_name":"test_vpc_02",
            "instance_region":"bd",
            "instance_account_id":"60a4f129eb0e47f0a110ea27b44b6073",
            "status":"attached"
        }
    ]
}