BenBeng

I noticed you mentioned `data_source_vm_instances.go`, so what you need is to filter the instance list through networkType/vpcId/subnetId, is that right? Or specify networkType when creating an instance?

API and SDK have been verified, and provider will be updated later.

Change `RequestAuth.TimestampMetric` type to int to match corresponding field type in the response of API `GET /v2/domain/{domain}/config`.

According to this [documentation](https://cloud.baidu.com/doc/CDN/s/njxzi59g9), `timestampMetric` is a string. Setting this field to number 10 or 16 also works. But setting `yyyyMMDDhhmm` to the field actually results in a setting of...