async def delete_image(ns={}):
    """
    删除节点镜像
    """
    import aiohttp
    ecs_url = 'http://api.capitalonline.net/ecs/v1'
    action = "DeleteImage"
    method = "POST"
    param={}
    body={
        "ImageIds": json.loads(ns.get("ImageIds")),
        "AvailableZoneCode": ns.get('AvailableZoneCode')
    }
    url = get_signature(action, method, ecs_url, param)
    async with aiohttp.ClientSession() as session:
        async with session.request(method, url, json=body) as response:
            resp = await response.text()
            result = json.loads(resp)
            if 'Message' in result.keys():
                key_word = 'Message'
            else:
                key_word = 'Msg'
            if result['Code'] == 'Success':
                result['status'] = True
                result.pop('Code')
                result['data'] = result.pop('Data')
                result['msg'] = result.pop(key_word)
            else:
                result['status'] = False
                result['msg'] = result.pop(key_word)
            return result
            
ret = await delete_image(params_kw)
return ret