pub unsafe extern "C" fn igraph_attribute_combination_remove(
comb: *mut igraph_attribute_combination_t,
name: *const c_char,
) -> igraph_error_tpub unsafe extern "C" fn igraph_attribute_combination_remove(
comb: *mut igraph_attribute_combination_t,
name: *const c_char,
) -> igraph_error_t