import type { HeuristicOperatorName, LlmMutatorConfig } from '../config';
import { type NodeMutator } from '../mutators/index';
/** The parsed `heuristics` sub-block of {@link LlmMutatorConfig}. */
export type HeuristicsConfig = LlmMutatorConfig['heuristics'];
/**
 * The outcome of {@link selectHeuristicMutators}: the chosen mutators plus the
 * names of any requested-but-unimplemented operators (for a debug log). Returned
 * as a record (not a bare array) so the caller can surface the gap without the
 * selection function performing logging side effects itself.
 */
export interface HeuristicSelection {
    /** The mutators to inject, in stable barrel order. */
    mutators: NodeMutator[];
    /**
     * Operator names that were explicitly requested in `operators` but are not in
     * the live registry yet (a not-yet-shipped catalog entry). Empty when the
     * allow-list is empty or every requested name resolved.
     */
    unimplemented: HeuristicOperatorName[];
}
/**
 * Select the heuristic mutators to inject for a given `heuristics` config block.
 * PURE — no side effects, no Stryker import. See the module header for the rules.
 *
 * @param cfg The parsed `heuristics` sub-block (`enabled`, `operators`, …).
 * @returns The chosen mutators (stable order) plus any unimplemented requests.
 */
export declare function selectHeuristicMutators(cfg: HeuristicsConfig): HeuristicSelection;