IGPAPI
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    Variable LoginHomepageDataSchemaConst

    LoginHomepageDataSchema: Struct<
        {
            aac: String;
            attestationChallengeNonce: optionalKey<String>;
            loginEntryPoint: Literals<readonly ["login-home", "landing-screen"]>;
            oauthQpl: Struct<{ instanceId: Number; markerId: Number }>;
            passwordTextInputId: String;
            qpl: Struct<{ instanceId: Number; markerId: Number }>;
            recoveryTicket: optionalKey<brand<String, "RecoveryActionTicket">>;
            usernameTextInputId: String;
            waterfallId: String;
        },
    > = ...

    What the logged-out launch's burst issued and the login home shows: the pre-login state the app obtains before the login form is used. The recovery entry is an opaque ticket (the raw issued action never crosses the screen's data). It is the one schema of that state: the screen's data is this type, the login step's state is this type without the recovery ticket, and nothing describes the state a second time.