Package-level declarations

Coordinates retrieval of the Play Store install referrer and lets callers await the parsed result. Implementations are store-flavour specific (the Play flavour talks to the Install Referrer library; other flavours no-op).

Public interface for app referral parameters

Outcome of parsing the Play Store install referrer.

Reason referrer retrieval failed; mirrors Google Play Install Referrer responses.

Contract for parsers that extract a single piece of data from the Play Store install referrer. Implementations are contributed as multibindings and run on a best-effort, fire-and-forget basis during referrer parsing. Each implementation persists its own result; ordering is irrelevant.