Function py_wigner_d 

pub fn py_wigner_d(
    tags: &Bound<'_, PyTuple>,
    spin: &Bound<'_, PyAny>,
    row_projection: &Bound<'_, PyAny>,
    column_projection: &Bound<'_, PyAny>,
    angles: &PyAngles,
) -> PyResult<PyExpression>

Construct a Wigner-D amplitude.