Function ZL_Compressor_Graph_getCustomNodes 

pub unsafe extern "C" fn ZL_Compressor_Graph_getCustomNodes(
    compressor: *const ZL_Compressor,
    graphid: ZL_GraphID,
) -> ZL_NodeIDList

@returns The custom nodes of @p graphid, which is only non-empty for dynamic and multi-input graphs. @note The array is valid for the lifetime of the @p compressor.