@property
    def core_properties(self):
        return self.package.core_properties
Normalizes a string of characters representing a phone number.
dataset/ETHPy150Open python-openxml/python-docx/docx/parts/document.py/DocumentPart.core_properties--crossover with--dataset/ETHPy150Open daviddrysdale/python-phonenumbers/python/phonenumbers/phonenumberutil.py/normalize_digits_only