Method take

crates/aiur/src/vk_codec.rs:226–234

(&mut self, n: usize)

    },
  }
  for idx in &system.preprocessed_indices {
    match idx {
      None => buf.extend_from_slice(&NO_PREP_INDEX.to_le_bytes()),
      Some(i) => {
        let v = u16::try_from(*i).expect("preprocessed index exceeds u16");
        assert!(
          v != NO_PREP_INDEX,
          "preprocessed index collides with sentinel"
        );
        buf.extend_from_slice(&v.to_le_bytes());
      },
    }