pub unsafe extern "C" fn igraph_induced_subgraph_edges(
graph: *const igraph_t,
vids: igraph_vs_t,
edges: *mut igraph_vector_int_t,
) -> igraph_error_tpub unsafe extern "C" fn igraph_induced_subgraph_edges(
graph: *const igraph_t,
vids: igraph_vs_t,
edges: *mut igraph_vector_int_t,
) -> igraph_error_t