export interface PropOr {
    <A, B, K extends PropertyKey>(fallback: A, property: K, data: B): B extends Record<K, infer V> ? (V extends null | undefined ? A : V) : A;
}
export interface PropOrU {
    <A, B, K extends PropertyKey>(fallback: A): (property: K) => (data: B) => B extends Record<K, infer V> ? (V extends null | undefined ? A : V) : A;
}
export declare const propOr: PropOr;
export declare const propOrU: PropOrU;