fun assignToGroup(child: String, parentId: String, responder: RequestResponder<ManagedObject>?): Unit
Associates the given managed object withe the other. This is most often used to add a device 'c8y_Device' to a group 'c8y_DeviceGroup'
child - the internal id of the managed object to be assigned
parentId - the internal id of parent managed object to which the child will be associated