Retrieves the strictest version of each policy rule from a list of booking policies.
Returns a hypothetical bookingPolicy object that combines the strictest
version of each rule. The id of the returned policy is null and no
corresponding bookingPolicy object is created. To create a new policy, you
can call Create Booking Policy.
IDs of the booking policies for which to retrieve the strictest rules for.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.