fn extract_sequence<'py, A>(obj: &Bound<'py, PyAny>) -> PyResult<SmallVec<A>>where
    A: Array,
    A::Item: FromPyObject<'py>,Available on crate feature 
smallvec only.fn extract_sequence<'py, A>(obj: &Bound<'py, PyAny>) -> PyResult<SmallVec<A>>where
    A: Array,
    A::Item: FromPyObject<'py>,smallvec only.