def get_key(self) -> str:
    'returns the key of the node\n\n        Returns:\n            str: the key in (key, value) pair\n        '
    return self.key
returns the key of the node

Returns:
    str: the key in (key, value) pair
def get_key(self) -> str:
    'returns the key of the node\n\n        Returns:\n            str: the key in (key, value) pair\n        '
    return self.key