export * from './Timezone';
export declare function initializeNotiflyStorage(projectId: string, username: string, password: string): Promise<void>;
export declare function isValidProjectId(projectId: string): boolean;
export declare function generateNotiflyUserId(projectId: string, externalUserId: string | null, deviceId: string): string;
export declare function getPlatform(): string;
export declare function generateRandomString(length: number): string;
export declare function mapNotificationPermissionToEnum(permission: NotificationPermission): number;
export declare const getGlobalScope: () => typeof globalThis | undefined;
export declare const getTimestampMicroseconds: () => number;
export declare function removeKeys(object: Record<string, unknown>, keys: string[]): Record<string, unknown>;
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