import { type CharacteristicSelector, type CharacteristicSelectorOptions } from './commands.js';
import { BODY_SENSOR_LOCATION_CHARACTERISTIC, HEART_RATE_CONTROL_POINT_CHARACTERISTIC, HEART_RATE_MEASUREMENT_CHARACTERISTIC, HEART_RATE_SERVICE } from './identifiers.js';
export { BODY_SENSOR_LOCATION_CHARACTERISTIC, HEART_RATE_CONTROL_POINT_CHARACTERISTIC, HEART_RATE_MEASUREMENT_CHARACTERISTIC, HEART_RATE_SERVICE };
export type HeartRateContact = 'unsupported' | 'not-detected' | 'detected';
export interface HeartRateMeasurement {
    readonly beatsPerMinute: number;
    readonly contact: HeartRateContact;
    readonly energyExpendedKilojoules: number | null;
    /** Consecutive RR intervals in seconds (wire unit: 1/1024 second). */
    readonly rrIntervalsSeconds: readonly number[];
}
export declare function heartRateMeasurementSelector(options?: CharacteristicSelectorOptions): CharacteristicSelector;
export declare function bodySensorLocationSelector(options?: CharacteristicSelectorOptions): CharacteristicSelector;
export declare function heartRateControlPointSelector(options?: CharacteristicSelectorOptions): CharacteristicSelector;
/** Parses the Bluetooth SIG Heart Rate Measurement characteristic (0x2A37). */
export declare function parseHeartRateMeasurement(bytes: Readonly<Uint8Array>): HeartRateMeasurement;
export declare function parseBodySensorLocation(bytes: Readonly<Uint8Array>): number;
/** Exact control-point value for the HRS Reset Energy Expended command. */
export declare function encodeResetEnergyExpended(): Uint8Array;
//# sourceMappingURL=heart-rate.d.ts.map