from typing import Any


def set_nested_attr(target: Any, key: str, value: Any):
    parts = key.split(".")
    for part in parts[:-1]:
        target = getattr(target, part)
    setattr(target, parts[-1], value)


def set_dict_nested_value(target: dict, key: str, value: Any):
    parts = key.split(".")
    for part in parts[:-1]:
        if part not in target:
            target[part] = {}
        target = target[part]
    target[parts[-1]] = value