import { Node } from "prosemirror-model";
/**
 * A container for holding a snippet of text with before and after text to give
 * context. This is useful for taking a snapshot of tagged content to store and
 * present to the user.
 */
export declare class PlainSingleLine {
    readonly textBefore: string;
    readonly text: string;
    readonly textAfter: string;
    constructor(textBefore: string, text: string, textAfter: string);
    eq(other: PlainSingleLine): boolean;
}
export interface EncodeToPlainSingleLineConstraints {
    textAfter: number;
    textBefore: number;
    text: number;
}
/**
 * Encode a range of a ProseMirror node to text.
 *
 * "Plain single line" refers to the formatting choices that have been made with
 * this function:
 *
 * - No new lines are included.
 * - Machine-readable formatting (e.g. HTML) is not used.
 * - Blocks are flattened into adjacent space-separated text.
 *
 */
export declare function encodeToPlainSingleLine(node: Node, options?: {
    /**
     * from→to range in the node to encode. If omitted the entire node will be
     * encoded. Out-of-range values are constrained to the size of the node, and
     * `constraints` limits are enforced.
     */
    range?: [number, number];
    /**
     * Text-length constraints to apply for each segment of text. If `text` is
     * exceeded, `textAfter` will be empty.
     */
    constraints?: EncodeToPlainSingleLineConstraints;
}): PlainSingleLine;