Function vsa_decode_data 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn vsa_decode_data(
    config: *const VSAConfigHandle,
    vec: *const SparseVecHandle,
    path: *const c_char,
    expected_size: usize,
) -> ByteBuffer

Decode a SparseVec back to data

Safety

• All handles must be valid
• path may be null or must be null-terminated UTF-8
• Returns a ByteBuffer that must be freed with byte_buffer_free