menaMpaaRating property
The rating system for MENA countries, a clone of MPAA.
It is needed to prevent titles go live w/o additional QC check, since some of them can be inappropriate for the countries at all. See b/33408548 for more details. Possible string values are:
- "menaMpaaUnspecified"
 - "menaMpaaG" : G
 - "menaMpaaPg" : PG
 - "menaMpaaPg13" : PG-13
 - "menaMpaaR" : R
 - "menaMpaaUnrated" : To keep the same enum values as MPAA's items have, skip NC_17.
 
Implementation
core.String? menaMpaaRating;