code: func subresourceSchema() map[string]*schema.Schema {
  	return map[string]*schema.Schema{
  		"key": {
  			Type:        schema.TypeInt,
  			Computed:    true,
  			Description: "The unique device ID for this device within its virtual machine.",
  		},
  		"device_address": {
  			Type:        schema.TypeString,
  			Computed:    true,
  			Description: "The internally-computed address of this device, such as scsi:0:1, denoting scsi bus #0 and device unit 1.",
  		},
  	}
  }
docs: // subresourceSchema is a map[string]*schema.Schema of common schema fields.
  // This includes the internal_id field, which is used as a unique ID for the
  // lifecycle of this resource.