Function sol_blake3 

pub unsafe fn sol_blake3(vals: *const u8, vals_len: u64, result: *mut u8) -> u64

Compute BLAKE3 over a slice-of-slices payload.

Returns the Solana runtime status code (0 on success).

Safety

vals must point to a valid array of slice descriptors and result must point to writable storage for 32 output bytes.