/**
 * F4: Temporal graph tools — filter by period and compare periods
 *
 * Validated patterns from tests/fierce-f2f5.ts:193-233.
 */
import type { TemporalFilterResult, ComparePeriodsResult } from '../types/graph-types.js';
import { type ComputeSession, type DuckDBLike } from '../compute-session.js';
/**
 * graph.temporal_filter — Filter edges by a period column/value, return graph stats.
 */
export declare function handleTemporalFilter(args: unknown, duckdb: DuckDBLike | ComputeSession): Promise<TemporalFilterResult>;
/**
 * graph.compare_periods — FULL OUTER JOIN edges from two periods, classify changes.
 */
export declare function handleComparePeriods(args: unknown, duckdb: DuckDBLike | ComputeSession): Promise<ComparePeriodsResult>;
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