Function cuvsCagraIndexGetGraphDegree 

pub unsafe extern "C" fn cuvsCagraIndexGetGraphDegree(
    index: cuvsCagraIndex_t,
    graph_degree: *mut i64,
) -> cuvsError_t

@brief Get graph degree of the CAGRA index

@param[in] index CAGRA index @param[out] graph_degree return graph degree @return cuvsError_t