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: primitives.rs
    path of file: ./repos/avrow/benches
    
    the code of the file until where you have to start completion: extern crate avrow;

#[macro_use]
extern crate criterion;

use criterion::Criterion;

use avrow::from_value;
use avrow::Reader;
use avrow::Schema;
use avrow::Writer;
use std::str::FromStr;

fn criterion_benchmark(c: &mut Criterion) {
    // Write benchmarks
    c.bench_function("write_null", |b| {
        let schema = Schema::from_str(r##"{"type": "null" }"##).unwrap();
        let mut out = vec![];
        let mut writer = Writer::new(&schema, &mut out).unwrap();

        b.iter(|| {
            for _ in 0..100_000 {
                writer.write(()).unwrap();
            }
        });

        writer.flush().unwrap();
    });

    c.bench_function("write_boolean", |b| {
        let schema = Schema::from_str(r##"{"type": "boolean" }"##).unwrap();
        let mut out = vec![];
        let mut writer = Writer::new(&schema, &mut out).unwrap();

        b.iter(|| {
            for i in 0..100_000 {
                writer.write(i % 2 == 0).unwrap();
            }
        });

        writer.flush().unwrap();
    });

    c.bench_function("write_int", |b| {
        let schema = Schema::from_str(r##"{"type": "int" }"##).unwrap();
        let mut out = vec![];
        let mut writer = Writer::new(&schema, &mut out).unwrap();

        b.iter(|| {
            for _ in 0..100_000 {
                writer.write(45).unwrap();
            }
        });

        writer.flush().unwrap();
    });

    c.bench_function("write_long", |b| {
        let schema = Schema::from_str(r##"{"type": "long" }"##).unwrap();
        let mut out = vec![];
        let mut writer = Writer::new(&schema, &mut out).unwrap();

        b.iter(|| {
            for _ in 0..100_000 {
                writer.write(45i64).unwrap();
            }
        });

        writer.flush().unwrap();
    });

    c.bench_function("write_float", |b| {
        let schema = Schema::from_str(r##"{"type": "float" }"##).unwrap();
        let mut out = vec![];
        let mut writer = Writer::new(&schema, &mut out).unwrap();

        b.iter(|| {
            for _ in 0..100_000 {
                writer.write(45.0f32).unwrap();
            }
        });

        writer.flush().unwrap();
    });

    c.bench_function("write_double", |b| {
        let schema = Schema::from_str(r##"{"type": "double" }"##).unwrap();
        let mut out = vec![];
        let mut writer = Writer::new(&schema, &m
    
fn criterion_benchmark(c: &mut Criterion) {
    // Write benchmarks
    c.bench_function("write_null", |b| {
        let schema = Schema::from_str(r##"{"type": "null" }"##).unwrap();
        let mut out = vec![];
        let mut writer = Writer::new(&schema, &mut out).unwrap();

        b.iter(|| {
            for _ in 0..100_000 {
                writer.write(()).unwrap();
            }
        });

        writer.flush().unwrap();
    });

    c.bench_function("write_boolean", |b| {
        let schema = Schema::from_str(r##"{"type": "boolean" }"##).unwrap();
        let mut out = vec![];
        let mut writer = Writer::new(&schema, &mut out).unwrap();

        b.iter(|| {
            for i in 0..100_000 {
                writer.write(i % 2 == 0).unwrap();
            }
        });

        writer.flush().unwrap();
    });

    c.bench_function("write_int", |b| {
        let schema = Schema::from_str(r##"{"type": "int" }"##).unwrap();
        let mut out = vec![];
        let mut writer = Writer::new(&schema, &mut out).unwrap();

        b.iter(|| {
            for _ in 0..100_000 {
                writer.write(45).unwrap();
            }
        });

        writer.flush().unwrap();
    });

    c.bench_function("write_long", |b| {
        let schema = Schema::from_str(r##"{"type": "long" }"##).unwrap();
        let mut out = vec![];
        let mut writer = Writer::new(&schema, &mut out).unwrap();

        b.iter(|| {
            for _ in 0..100_000 {
                writer.write(45i64).unwrap();
            }
        });

        writer.flush().unwrap();
    });

    c.bench_function("write_float", |b| {
        let schema = Schema::from_str(r##"{"type": "float" }"##).unwrap();
        let mut out = vec![];
        let mut writer = Writer::new(&schema, &mut out).unwrap();

        b.iter(|| {
            for _ in 0..100_000 {
                writer.write(45.0f32).unwrap();
            }
        });

        writer.flush().unwrap();
    });

    c.bench_function("write_double", |b| {
        let schema = Schema::from_str(r##"{"type": "double" }"##).unwrap();
        let mut out = vec![];
        let mut writer = Writer::new(&schema, &mut out).unwrap();

        b.iter(|| {
            for _ in 0..100_000 {
                writer.write(45.0f64).unwrap();
            }
        });

        writer.flush().unwrap();
    });

    c.bench_function("write_bytes", |b| {
        let schema = Schema::from_str(r##"{"type": "bytes" }"##).unwrap();
        let mut out = vec![];
        let mut writer = Writer::new(&schema, &mut out).unwrap();

        b.iter(|| {
            for _ in 0..100_000 {
                let v = vec![0u8, 1, 2, 3];
                writer.write(v).unwrap();
            }
        });

        writer.flush().unwrap();
    });

    c.bench_function("write_string", |b| {
        let schema = Schema::from_str(r##"{"type": "string" }"##).unwrap();
        let mut out = vec![];
        let mut writer = Writer::new(&schema, &mut out).unwrap();

        b.iter(|| {
            for _ in 0..100_000 {
                writer.write("hello").unwrap();
            }
        });

        writer.flush().unwrap();
    });

    // Read benchmarks
    c.bench_function("avro_read_bytes_from_vec", |b| {
        let avro_data = vec![
            79, 98, 106, 1, 4, 22, 97, 118, 114, 111, 46, 115, 99, 104, 101, 109, 97, 32, 123, 34,
            116, 121, 112, 101, 34, 58, 34, 98, 121, 116, 101, 115, 34, 125, 20, 97, 118, 114, 111,
            46, 99, 111, 100, 101, 99, 8, 110, 117, 108, 108, 0, 149, 158, 112, 231, 150, 73, 245,
            11, 130, 6, 13, 141, 239, 19, 146, 71, 2, 14, 12, 0, 1, 2, 3, 4, 5, 149, 158, 112, 231,
            150, 73, 245, 11, 130, 6, 13, 141, 239, 19, 146, 71,
        ];

        b.iter(|| {
            let reader = Reader::new(avro_data.as_slice()).unwrap();
            for i in reader {
                let _: Vec<u8> = from_value(&i).unwrap();
            }
        });
    });
}