@classmethod
    def from_runtime_repr(klass, runtime_repr):
        result = klass(dcm_meta_ecode, '{}')
        result._content = runtime_repr
        result.check_valid()
        return result
Create an extension from the Python runtime representation (nested
dataset/ETHPy150Open moloney/dcmstack/src/dcmstack/dcmmeta.py/DcmMetaExtension.from_runtime_repr