def if_any_in(keys, container, func_true=None):
    """
    checks if any given keys ar in the container and
    executes func_true for each of the corresponding values of the existing keys
    :param keys: iterable of keys to find
    :param container: the container to search in
    :param func_true: callable that is called for each value on success: func_true(container[key])
    :return: whether any of the keys exist
    """
    found_key = False
    for key in keys:
        if key in container:
            container[key] = func_true(container[key])
            found_key = True
    return found_key
