Can minidom generate invalid XML?

minidom.py

from pyexpat import ExpatError
from xml.dom import minidom


def create_xml_sample(text: str) -> str:
    doc = minidom.Document()
    root = doc.createElement("root")
    normal_text = doc.createTextNode(text)
    root.appendChild(normal_text)
    doc.appendChild(root)
    return doc.toprettyxml(indent="\t", encoding="utf-8")


if __name__ == '__main__':
    simple_sample = create_xml_sample("Sample Text")
    minidom.parseString(simple_sample)
    html_sample = create_xml_sample("Adää䛢&<> Text")
    minidom.parseString(html_sample)
    bib_ref = create_xml_sample("{\x08f 67}")
    try:
        minidom.parseString(bib_ref)
    except ExpatError as e:
        assert e.code == 4
        pass