import { FeedClientOptions } from "@knocklabs/client";
import { Locale } from "date-fns";
import { ReactNode } from "react";
export declare function formatBadgeCount(count: number): string | number;
declare type FormatTimestampOptions = {
    locale?: Locale;
};
export declare function formatTimestamp(ts: string, options?: FormatTimestampOptions): string;
export declare function toSentenceCase(string: string): string;
export declare function renderNodeOrFallback(node: ReactNode, fallback: ReactNode): {} | null | undefined;
export declare function feedProviderKey(userFeedId: string, options?: FeedClientOptions): string;
export {};
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