def METHOD_NAME(tag_name: str) -> "RelativeBy":
    """Start searching for relative objects using a tag name.
    Note: This method may be removed in future versions, please use
    `locate_with` instead.
    :Args:
        - tag_name: the DOM tag of element to start searching.
    :Returns:
        - RelativeBy - use this object to create filters within a
            `find_elements` call.
    """
    if not tag_name:
        raise WebDriverException("tag_name can not be null")
    return RelativeBy({"css selector": tag_name})