Execute_kw does not work

[albgen]

Is your feature request related to a problem? Please describe.
Yes. The problem is that if you want to create multiple object with one web request, you cannot but you have to create them sending multiple requests one by one. For example, if you create a pricelist with multiple prices, with the current implementation you have to make an execute for each priceitem in the pricelist. Instead with execute_kw, it will make one request for all price items.

Describe the solution you'd like
implement execute_kw instead of execute

Describe alternatives you've considered
running execute multiple times which is very time consuming.

thanks