def deep_update(original_dict: dict, update_dict: dict) -> dict:
    """Extend data in original dict from update_dict.

    Args:
        original_dict: Original dict to update.
        update_dict: Dict with new content to insert into original.

    Returns:
        Updated original dict.

    """
    for key, value in update_dict.items():
        original_value = original_dict.get(key)
        if isinstance(original_value, list):
            original_dict[key] = original_value + value
        elif isinstance(original_value, dict):
            original_dict[key] = deep_update(original_value, value)
        else:
            original_dict[key] = value
    return original_dict