import { PropertyAccessor } from '@cratis/fundamentals';
import { ICompositeKeyBuilder } from './ICompositeKeyBuilder.js';
import { ICompositeKeySetBuilder } from './ICompositeKeySetBuilder.js';
/**
 * Concrete implementation of {@link ICompositeKeyBuilder} that builds a `$composite(...)` key
 * expression from event properties, event context, source identifiers and constants.
 * @template TKeyType - The composite key type.
 * @template TEvent - The event type.
 */
export declare class CompositeKeyBuilder<TKeyType, TEvent> implements ICompositeKeyBuilder<TKeyType, TEvent> {
    private readonly _parts;
    /** @inheritdoc */
    set<TProperty>(targetPropertyAccessor: (key: TKeyType) => TProperty): ICompositeKeySetBuilder<TKeyType, TEvent, TProperty>;
    /** @inheritdoc */
    set(targetPropertyAccessor: PropertyAccessor<TKeyType>, sourcePropertyAccessor: PropertyAccessor<TEvent>): ICompositeKeyBuilder<TKeyType, TEvent>;
    /** @inheritdoc */
    build(): string;
}
//# sourceMappingURL=CompositeKeyBuilder.d.ts.map