pub unsafe extern "C" fn igraph_cattribute_list(
graph: *const igraph_t,
gnames: *mut igraph_strvector_t,
gtypes: *mut igraph_vector_int_t,
vnames: *mut igraph_strvector_t,
vtypes: *mut igraph_vector_int_t,
enames: *mut igraph_strvector_t,
etypes: *mut igraph_vector_int_t,
) -> igraph_error_t