You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: varint.rs
    path of file: ./repos/s2n-quic/quic/s2n-quic-bench/src
    
    the code of the file until where you have to start completion: // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0

use criterion::{black_box, BenchmarkId, Criterion};
use s2n_codec::{DecoderBuffer, Encoder, EncoderBuffer, EncoderValue};
use s2n_quic_core::varint::VarInt;

pub fn benchmarks(c: &mut Criterion) {
    encode(c);
    decode(c);
}

#[inline(always)]
pub fn encode_n<const N: usize>(inputs: [VarInt; N], buffer: &mut [u8]) {
    let mut encoder = EncoderBuffer::new(buffer);
    for input in inputs {
        if input.encoding_size() > encoder.remaining_capacity() {
            break;
        }
        encoder.encode(&input);
    }
}

#[inline(never)]
pub fn encode_slice(input: VarI
    
fn decode(c: &mut Criterion) {
    let mut group = c.benchmark_group("varint/decode");
    for i in [0, 1, 5, 6, 13, 14, 29, 30, 61] {
        let i = VarInt::new(2u64.pow(i)).unwrap();

        group.bench_with_input(BenchmarkId::new("array", i), &i, |b, input| {
            let mut buffer = [0; 8];
            encode_array(black_box(*input), black_box(&mut buffer));
            b.iter(|| {
                black_box(decode_array(black_box(&buffer)));
            });
        });
        group.bench_with_input(BenchmarkId::new("slice", i), &i, |b, input| {
            let mut buffer = [0; 8];
            encode_slice(black_box(*input), black_box(&mut buffer));
            b.iter(|| {
                black_box(decode_slice(black_box(&buffer)));
            });
        });
        group.bench_with_input(BenchmarkId::new("array_16", i), &i, |b, input| {
            let mut buffer = [0; 8 * 16];
            encode_16_array(black_box(*input), black_box(&mut buffer));
            b.iter(|| {
                black_box(decode_16_array(black_box(&buffer)));
            });
        });
        group.bench_with_input(BenchmarkId::new("slice_16", i), &i, |b, input| {
            let mut buffer = [0; 8 * 16];
            encode_16_slice(black_box(*input), black_box(&mut buffer));
            b.iter(|| {
                black_box(decode_16_slice(black_box(&buffer)));
            });
        });
    }
    group.finish();
}