import type { Un$Typed } from '@atproto/lex-schema';
import type { AtUriString, DidString } from '@atproto/syntax';
import type { AppContext } from '../../../../context.js';
import type { HydrationState } from '../../../../hydration/hydrator.js';
import type { app } from '../../../../lexicons/index.js';
import { type NotificationPreferences } from '../../../../proto/bsky_pb.js';
import { AppPlatform } from '../../../../proto/courier_pb.js';
import type { Views } from '../../../../views/index.js';
export declare const shouldFilterReplyByThreadgate: (reason: string, uri: AtUriString, viewer: string, hydration: HydrationState, views: Views) => boolean;
export declare const shouldFilterHiddenThreadTag: (reason: string, uri: AtUriString, did: DidString, hydration: HydrationState, hiddenTags: ReadonlySet<string>) => boolean;
export declare const shouldFilterForNeedsReview: (reason: string, did: DidString, uri: AtUriString, hydration: HydrationState, views: Views) => boolean;
/** Applies the configured delay to the notification cursor timestamp. */
export declare const delayCursor: (cursorStr: string | undefined, delayMs: number) => string;
type DeepPartial<T> = T extends object ? {
    [P in keyof T]?: DeepPartial<T[P]>;
} : T;
type LexNotificationPreferences = Un$Typed<app.bsky.notification.defs.Preferences>;
export declare const mergeNotificationPreferences: (current: LexNotificationPreferences, updates: Partial<LexNotificationPreferences>) => LexNotificationPreferences;
export declare const getNotificationPreferences: (ctx: AppContext, actorDid: string) => Promise<LexNotificationPreferences>;
export declare const DEFAULT_CHAT_PREFERENCE: app.bsky.notification.defs.ChatPreference;
export declare const protobufToLex: (res: DeepPartial<NotificationPreferences>) => app.bsky.notification.defs.Preferences;
type LexPlatform = 'ios' | 'android' | 'web';
export declare function assertLexPlatform(platform: string): asserts platform is LexPlatform;
export declare const lexPlatformToProtoPlatform: (platform: string) => AppPlatform;
export {};
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