import type { AppendOptions } from '../eventSequences/AppendOptions.js';
import { UnsupportedEventSequenceOperation } from './UnsupportedEventSequenceOperation.js';
/**
 * Whether a named-tag option asks for anything. An explicitly empty array carries no tags, exactly like an
 * omitted option; anything else is reported, including malformed values the production client would reject.
 */
export declare function hasNamedTags(namedTags: unknown): boolean;
/** The fixture-proven single-append route boundary, shared with read-model setup. */
export declare function singleAppendRoute(options: AppendOptions | undefined, artifact: string, unsupported?: (operation: string, artifact: string, reason: string) => UnsupportedEventSequenceOperation, allowSubject?: boolean): {
    sourceType: string;
    streamType: string;
    streamId: string;
};
//# sourceMappingURL=singleAppendRoute.d.ts.map