I'm trying to create an POS order via XMLRPC and than validate it, this is my code:

val order = client().execute(client_config,"execute_kw", listOf(
         db, uid, p, "stock.picking", "search",
         listOf<Any>(
             listOf<Any>(listOf("name", "=", "WH/POS/00001"))
         )))

 client().execute(client_config, "execute_kw", listOf(
         database, uid, password, "stock.picking", "do_new_transfer",
     listOf<Any>(order)
 ))

However I have the error:  AttributeError: type object 'stock.picking' has no attribute 'do_new_transfer'

Someone know how solve this error ora validate it in another way?