import { default as React } from 'react';
export declare function mergeRefs<T>(...inputRefs: (React.Ref<T> | undefined)[]): React.Ref<T> | React.RefCallback<T>;
export declare const isTouchableDevice: () => boolean;
export declare const isValidRenderValue: (value: any) => value is string | number | React.ReactElement<unknown, string | React.JSXElementConstructor<any>>;
export declare const waitForNextFrame: () => Promise<unknown>;
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