import type { SemanticBackend } from './semantic-plan.js';
export type InMemoryTable = Array<Record<string, unknown>>;
export type InMemoryTables = Record<string, InMemoryTable>;
/**
 * @deprecated The plan/backend execution path is frozen (bug fixes only); this
 * backend remains as the test harness for that path. New code should use
 * `createDatasetClient({ queryBuilder })`.
 */
export declare function createInMemoryBackend(tables: InMemoryTables): SemanticBackend;
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