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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def are_equal_elements(a_el, b_el):
 """Normalize and compare ElementTrees for equality. Args: a_el: ElementTree b_el: ElementTree ElementTrees to compare for equality. Returns: bool: ``True`` if the ElementTrees are semantically equivalent. """

    if a_el.tagName != b_el.tagName:
        return False
    if sorted(a_el.attributes.items()) != sorted(b_el.attributes.items()):
        return False
    if len(a_el.childNodes) != len(b_el.childNodes):
        return False
    for a_child_el, b_child_el in zip(a_el.childNodes, b_el.childNodes):
        if a_child_el.nodeType != b_child_el.nodeType:
            return False
        if (
            a_child_el.nodeType == a_child_el.TEXT_NODE
            and a_child_el.data != b_child_el.data
        ):
            return False
        if a_child_el.nodeType == a_child_el.ELEMENT_NODE and not are_equal_elements(
            a_child_el, b_child_el
        ):
            return False
    return True