import type { Token } from '../../parser/types.js';
import type { TokenRule, TokenRuleContext } from '../types.js';
/**
 * Shared by MD019 (`no-multiple-space-atx`) and MD021
 * (`no-multiple-space-closed-atx`) — upstream ports both from the single
 * `md019-md021.mjs` file's `validateHeadingSpaces` helper. `delta` is the
 * scan direction: `1` scans forward from the start of the heading's
 * children (the opening `#` sequence), `-1` scans backward from the end
 * (the closing `#` sequence, atx_closed only).
 */
export declare function validateHeadingSpaces(ctx: TokenRuleContext, heading: Token, delta: 1 | -1): void;
export declare const noMultipleSpaceAtx: TokenRule;
//# sourceMappingURL=no-multiple-space-atx.d.ts.map