Add missing entity type

Author: nvazquez

api/src/main/java/org/apache/cloudstack/api/command/admin/vm/ImportVmCmd.java

@@ -30,6 +30,7 @@
 import org.apache.cloudstack.api.Parameter;
 import org.apache.cloudstack.api.ResponseObject;
 import org.apache.cloudstack.api.ServerApiException;
+import org.apache.cloudstack.api.response.GuestOSResponse;
 import org.apache.cloudstack.api.response.HostResponse;
 import org.apache.cloudstack.api.response.NetworkResponse;
 import org.apache.cloudstack.api.response.StoragePoolResponse;
@@ -173,6 +174,7 @@ public class ImportVmCmd extends ImportUnmanagedInstanceCmd {
 
     @Parameter(name = ApiConstants.OS_ID,
             type = CommandType.UUID,
+            entityType = GuestOSResponse.class,
             since = "4.22.1",
             description = "(only for importing VMs from VMware to KVM) optional - the ID of the guest OS for the imported VM.")
     private Long guestOsId;