/**
 * Validation for `repeat` / `separator` on a `<gen>`.
 *
 * Runs for EVERY generator type, not just one, because the important check is
 * whether this type can carry `repeat` at all. Refusing here — before anything
 * is generated — is what keeps the two engines honest: the in-RAM builder could
 * happily repeat a counter, the streaming one cannot, and a config that quietly
 * means different things in different engines is worse than a rejected one.
 */
import { type Diagnostic } from '../errors/index.js';
import type { OpenCloseElementContext, SelfClosingElementContext } from '../generated/TDCParser.js';
export declare function checkGenRepeat(gen: OpenCloseElementContext | SelfClosingElementContext, diagnostics: Diagnostic[]): void;
/**
 * `repeat` belongs to a `<gen>`, which produces values. A `<mix>` CHOOSES one
 * of its branches, so repeating it has no defined meaning and the runtime
 * ignores the attribute — the silent-and-wrong outcome this project keeps
 * refusing to ship. Flag it instead.
 */
export declare function checkMixRepeat(mixEl: OpenCloseElementContext, diagnostics: Diagnostic[]): void;
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