/**
 * Get the value of a property if present or use default value.
 * @param defaultValue :: a
 * @param key :: PropertyKey
 * @param obj :: { [PropertyKey]?: a }
 * @returns :: a
 */
export declare const propOr: {
    <A, K extends PropertyKey>(defaultValue: A, key: K, obj: {
        [Key in K]: A;
    }): A;
    <A, K extends PropertyKey>(defaultValue: A, key: K): (obj: {
        [Key in K]: A;
    }) => A;
    <A>(defaultValue: A): {
        <K extends PropertyKey>(key: K, obj: {
            [Key in K]: A;
        }): A;
        <K extends PropertyKey>(key: K): (obj: {
            [Key in K]: A;
        }) => A;
    };
};
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