def _stringify(self, transform: StringifyTransform) -> str:
    res = []
    if self.templatePrefix:
        res.append(transform(self.templatePrefix))
    res.append(transform(self.nestedName))
    return ''.join(res)
def _stringify(self, transform: StringifyTransform) -> str:
    res = []
    if self.templatePrefix:
        res.append(transform(self.templatePrefix))
    res.append(transform(self.nestedName))
    return .join(res)