OptionalFACEBOOK_OptionalGRAPHQL_OptionalGRAPHQL_When true, GraphQL forms omit the pretty field (Instagram Android 448+).
OptionalGRAPHQL_Value of the GraphQL form server_timestamps field. Instagram Android 448+
sends the literal true; older traffic sent a unix timestamp. Undefined
keeps the legacy timestamp.
OptionalRMD_The two trailing numbers of the no-valid-map x-fb-rmd value. They are
an app-internal constant, not derived from the routing-map fetch (see
RmdNoValidMapTimes).
OptionalZERO_Zero-rating header values per MobileZeroPhase. When absent the platform keeps its phase-independent zero-rating headers.
GraphQL client doc ids keyed by friendly name. When an entry matches the call's friendly name it overrides that call's literal
clientDocId.