import type { Inline } from './inline.js';
import type { AnchorId } from './link.js';
import type { List } from './list.js';
import type { Table } from './table.js';
/** One block-level piece of a document body. */
export type Block = {
    type: 'heading';
    /** Outline depth as the source assigns it, 1-based. Renderers clamp. */
    level: number;
    /** Stable anchor id when the source document targets this heading. */
    anchor: AnchorId | undefined;
    content: Inline[];
} | {
    type: 'paragraph';
    inlines: Inline[];
} | {
    type: 'list';
    list: List;
} | {
    type: 'table';
    table: Table;
} | {
    type: 'blockQuote';
    blocks: Block[];
} | {
    type: 'codeBlock';
    lang: string | undefined;
    text: string;
} | {
    type: 'rule';
};
/** A heading with no anchor. */
export declare function heading(level: number, content: Inline[]): Block;