export declare type Options<T> = {
    /**
     * Function that acts as a custom comparator
     * for the array objects. Function should return true if objects are equal, otherwise false.
     *
     */
    compare?: (a: T, b: T) => boolean;
    /**
     * Function used to decide what to return
     * as a result subsequence. It accepts 2 arguments: index of common element
     * in the first array and index in the second. The default function returns
     * element from the first array.
     */
    collect?: (i1: number, i2: number) => T;
};
/**
 * Implementation of Longest Common Subsequence problem.
 * http://en.wikipedia.org/wiki/Longest_common_subsequence
 *
 * Returns the longest possible array that is subarray of both of given arrays.
 *
 * @param array1 First array of objects.
 * @param array2 Second array of objects.
 * @param __namedParameters see {@link Options}
 * @default compare equality comparison
 * @default collect basic collector
 * @returns A list of objects that are common to both arrays
 * such that there is no common subsequence with size greater than the
 * length of the list.
 */
export declare function longestCommonSubsequence<T>(array1: ArrayLike<T>, array2: ArrayLike<T>, { compare, collect }?: Options<T>): T[];
export default longestCommonSubsequence;