pub unsafe extern "C" fn igraph_cattribute_GAB_set(
graph: *mut igraph_t,
name: *const c_char,
value: igraph_bool_t,
) -> igraph_error_tpub unsafe extern "C" fn igraph_cattribute_GAB_set(
graph: *mut igraph_t,
name: *const c_char,
value: igraph_bool_t,
) -> igraph_error_t