from itertools import pairwise
from typing import TypeVar

A = TypeVar("A")


def split_at(list_to_be_split: list[A], positions: list[int]):
    positions = sorted(set([0, *positions, len(list_to_be_split)]))

    return [list_to_be_split[left:right] for left, right in pairwise(positions)]


__all__ = ["split_at"]