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: map_benchmark.rs
    path of file: ./repos/qdrant/lib/segment/benches
    
    the code of the file until where you have to start completion: #[cfg(not(target_os = "windows"))]
mod prof;

use std::collections::{BTreeMap, HashMap};

use criterion::{criterion_group, criterion_main, Criterion};
use rand::rngs::StdRng;
use rand::SeedableRng;
use segment::data_types::tiny_map::TinyMap;
use segment::fixtures::index_fixtures::random_vector;

const DIM: usize = 100;

fn small_map_obj(c: &mut Criterion) {
    let mut group = c.benchmark_group("small-map-obj-group");

    let mut rng = StdRng::seed_from_u64(42);
    let default_key = "vector".to_string();
    let default_key_2 = "vector1".to_string();
    let default_key_3 = "vector2".to_string();
    let random_vector = random_vector(&mut rng, DIM);

    group.bench_function("hash-map", |b| {
        b.iter(|| {
            let mut map = HashMap::new();
            map.insert(default_key.clone(), random_vector.clone());
            map.insert(default_key_2.clone(), random_vector.clone());
            map.insert(default_key_3.clone(), random_vector.clone());
            let _ = map.get(&default_key_3);
        });
  
    
fn small_map_obj(c: &mut Criterion) {
    let mut group = c.benchmark_group("small-map-obj-group");

    let mut rng = StdRng::seed_from_u64(42);
    let default_key = "vector".to_string();
    let default_key_2 = "vector1".to_string();
    let default_key_3 = "vector2".to_string();
    let random_vector = random_vector(&mut rng, DIM);

    group.bench_function("hash-map", |b| {
        b.iter(|| {
            let mut map = HashMap::new();
            map.insert(default_key.clone(), random_vector.clone());
            map.insert(default_key_2.clone(), random_vector.clone());
            map.insert(default_key_3.clone(), random_vector.clone());
            let _ = map.get(&default_key_3);
        });
    });

    group.bench_function("btree-map", |b| {
        b.iter(|| {
            let mut map = BTreeMap::new();
            map.insert(default_key.clone(), random_vector.clone());
            map.insert(default_key_2.clone(), random_vector.clone());
            map.insert(default_key_3.clone(), random_vector.clone());
            let _ = map.get(&default_key_3);
        });
    });

    #[allow(clippy::vec_init_then_push)]
    group.bench_function("vec-map", |b| {
        b.iter(|| {
            let mut map = Vec::with_capacity(3);
            map.push((default_key.clone(), random_vector.clone()));
            map.push((default_key_2.clone(), random_vector.clone()));
            map.push((default_key_3.clone(), random_vector.clone()));
            let _ = map.iter().find(|(k, _)| k == &default_key_3);
        });
    });

    group.bench_function("tiny-map", |b| {
        b.iter(|| {
            let mut map = TinyMap::new();
            map.insert(default_key.clone(), random_vector.clone());
            map.insert(default_key_2.clone(), random_vector.clone());
            map.insert(default_key_3.clone(), random_vector.clone());
            let _ = map.get(&default_key_3);
        });
    });
}