Function slice_closure_via 

pub fn slice_closure_via<F>(
    dispatch: &F,
    node_count: u32,
    edge_offsets: &[u32],
    edge_targets: &[u32],
    edge_kind_mask: &[u32],
    seed_bits: &[u32],
    max_iterations: u32,
) -> Result<Vec<u32>, String>
where
    F: Fn(&Program, &[Vec<u8>], Option<[u32; 3]>) -> Result<Vec<Vec<u8>>, String>,