/**
 * Filter Status Parser
 *
 * Parses filter status from various shadow formats.
 */
import type { FilterData, FilterStatus } from './types.js';
/**
 * Parse filter status from shadow data
 *
 * Handles multiple formats:
 * 1. filterBagIndication: { state: number (0-100), resetFBI: boolean }
 * 2. filterIndicator: { filterState: string, filterLevel: number }
 * 3. Legacy: filter_state: number (0 = clean, >0 = needs cleaning)
 *
 * @param filterBagData - filterBagIndication data from shadow
 * @param filterIndicatorData - filterIndicator data from shadow
 * @returns Filter status
 */
export declare function parseFilterStatus(filterBagData?: FilterData, filterIndicatorData?: FilterData): FilterStatus;
/**
 * Parse legacy filter state (numeric)
 *
 * @param filterState - Numeric filter state (0 = clean, >0 = dirty)
 * @returns Filter status
 */
export declare function parseLegacyFilterStatus(filterState?: number): FilterStatus;
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