Merge "Add helper methods to parse config JSON." into main am: cbfbe35c1b

Original change: https://android-review.googlesource.com/c/platform/development/+/2817757

Change-Id: I678cfc78ca4270497d2baac8d4b1ab85b77ad311
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>