import { Subscription } from 'expo-modules-core';
import ReactNativeDetectNotePitchView from './ReactNativeDetectNotePitchView';
import { ChangeEventPayload, ReactNativeDetectNotePitchViewProps } from './ReactNativeDetectNotePitch.types';
export declare const PI: any;
export declare function hello(): string;
export declare function setValueAsync(value: string): Promise<any>;
export declare function addChangeListener(listener: (event: ChangeEventPayload) => void): Subscription;
export { ReactNativeDetectNotePitchView, ReactNativeDetectNotePitchViewProps, ChangeEventPayload };
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