import { Mark, RichTextNode, Value } from './types';
export type MarkNode = {
    type: Mark;
};
export declare const safeJsonParse: <T>(jsonString: string) => T | null;
export declare const richToPlainText: <T>(data: string, blockDivisor?: string) => string;
export declare function normalizeNode<T = Value>(node: RichTextNode<T>): RichTextNode<T>;
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