pub unsafe extern "C" fn igraph_simple_cycles(
graph: *const igraph_t,
vertices: *mut igraph_vector_int_list_t,
edges: *mut igraph_vector_int_list_t,
mode: igraph_neimode_t,
min_cycle_length: igraph_int_t,
max_cycle_length: igraph_int_t,
max_results: igraph_int_t,
) -> igraph_error_t