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How to use transform_empty_parenthesis method in pandera

Best Python code snippet using pandera_python

test_decorators.py

Source:test_decorators.py

...359def test_check_types_arguments() -> None:360    """Test that check_types forwards key-words arguments to validate."""361    df = pd.DataFrame({"a": [0, 0]})362    @check_types()363    def transform_empty_parenthesis(364        df: DataFrame[OnlyZeroesSchema],365    ) -> DataFrame[OnlyZeroesSchema]:  # pylint: disable=unused-argument366        return df367    transform_empty_parenthesis(df)368    @check_types(head=1)369    def transform_head(370        df: DataFrame[OnlyZeroesSchema],  # pylint: disable=unused-argument371    ) -> DataFrame[OnlyZeroesSchema]:372        return pd.DataFrame({"a": [0, 0]})373    transform_head(df)374    @check_types(tail=1)375    def transform_tail(376        df: DataFrame[OnlyZeroesSchema],  # pylint: disable=unused-argument377    ) -> DataFrame[OnlyZeroesSchema]:378        return pd.DataFrame({"a": [1, 0]})379    transform_tail(df)380    @check_types(lazy=True)381    def transform_lazy(...

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