pub unsafe extern "C" fn igraph_create(
graph: *mut igraph_t,
edges: *const igraph_vector_t,
n: igraph_integer_t,
directed: igraph_bool_t,
) -> c_intpub unsafe extern "C" fn igraph_create(
graph: *mut igraph_t,
edges: *const igraph_vector_t,
n: igraph_integer_t,
directed: igraph_bool_t,
) -> c_int