import { SourceFile } from 'ts-morph';
/**
 * Auto-generated types may contain circular references, like
 * ```typescript
 * type A = "a" | B
 * type B = "b" | A
 * ```
 * These circular references likely do not exist in the grammar (since it could produce
 * a parser with an infinite loop). They were likely created when inferring types for a grammar
 * like
 * ```
 * A = "a" / B
 * B = "b" / "(" A ")"
 * ```
 *
 * This function attempts to detect and remove these circular references.
 * @param file
 */
export declare function pruneCircularReferences(file: SourceFile): void;