export declare const times: <T>(fn: (index: number) => T, repetitions: number) => T[];
export declare const repeat: <T>(value: T, repetitions: number) => T[];
export declare const min: (arr: number[]) => number;
export declare const max: (arr: number[]) => number;
export declare const sum: (numbers: number[]) => number;
export declare const clone: <T>(data: T) => T;
/**
 * @see https://stackoverflow.com/a/14438954/1806628
 */
export declare const uniq: <T>(values: T[]) => T[];
export declare const last: <T>(values: T[]) => T | undefined;
/**
 * The average of all given values by summing values then divide by the amount of values
 *
 * mean([2, 2, 3, 5, 5, 7, 8]) === 4.57
 * because (2 + 2 + 3 + 5 + 5 + 7 + 8) / 7 === 4.57
 */
export declare const mean: (values: number[]) => number;
/**
 * Finds the middle number of a list. If the list has an even number of elements,
 * then it takes the middle 2 and averages them.
 *
 * median([2, 2, 3, 5, 5, 7, 8]) === 5
 */
export declare const median: (values: number[]) => number;
export declare const complement: (fn: (...args: any[]) => boolean) => (...args: any[]) => boolean;
export declare const partition: <T>(fn: (arg: T) => boolean, values: T[]) => [T[], T[]];
export declare const countBy: <T>(fn: (value: T) => string, values: T[]) => Record<string, number>;
/**
 * Groups the values of a given array of numbers into infos about the sequences inside
 *
 * @input [1, 2, 3, 5, 6, 7, 10]
 * @output [[1, 3], [5, 3], [10, 1]]
 *
 * This function is similar to ramda's groupWith((a, b) => a + 1 === b, numbers)
 * but instead of having the result as `[[1, 2, 3], [5, 6, 7], [10]]`
 * the function gives back pairs of the first number and the size of each sequence
 *
 * The function does not perform any sorting on the numbers:
 * `[20, 19, 1, 2, 18, 3]` will become `[[19, 2], [1, 2], [18, 1], [3, 1]]`
 *
 * The first number in each pair holds the smallest number of the sequence
 * The second number is the size of the sequence
 */
export declare const groupSequences: (numbers: number[]) => [number, number][];