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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 get_element(text_or_tree_or_element):
 """ Get back an ET.Element for several possible input formats """

    if isinstance(text_or_tree_or_element, ET.Element):
        return text_or_tree_or_element
    elif isinstance(text_or_tree_or_element, ET.ElementTree):
        return text_or_tree_or_element.getroot()
    elif isinstance(text_or_tree_or_element, (unicode, bytes)):
        return ET.fromstring(text_or_tree_or_element)
    else:
        return ET.parse(text_or_tree_or_element).getroot()