[ZIA] How to add URL Filtering by API

I want to know ZIA api details.

I’m making a python script which adds new url filtering rules to zia.
In this script, I use a same payload in below page.

https://help.zscaler.com/zia/api#/URL%20Filtering%20Policies/addRule

But I got an error message “Request body is invalid.”.
So I want to know necessary request parameters.