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: fuzz_arithmetic.rs
    path of file: ./repos/nom/fuzz/fuzz_targets
    
    the code of the file until where you have to start completion: #![no_main]
use libfuzzer_sys::fuzz_target;
use std::str;

extern crate nom;

use nom::{
  branch::alt,
  bytes::complete::tag,
  character::complete::char,
  character::complete::{digit1 as digit, space0 as space},
  combinator::{map, map_res, verify},
  multi::fold_many0,
  sequence::{delimited, pair, terminated},
  IResult, Parser
};

use std::cell::RefCell;
use std::str::FromStr;

thread_local! {
    pub static LEVEL: RefCell<u32> = RefCell::new(0);
}

fn reset() {
  LEVEL.with(|l| {
    *l.borrow_mut() = 0;
  });
}

fn incr(i: &str) -> IResult<&str, ()> {
  LEVEL.with(|l| {
    *l.borrow_mut() += 1;

    // limit the number of recursions, th
    
fn term(i: &str) -> IResult<&str, i64> {
  incr(i)?;
  let (i, init) = factor(i).map_err(|e| {
    decr();
    e
  })?;

  let res = fold_many0(
    alt((
      pair(char('*'), factor),
      pair(char('/'), verify(factor, |i| *i != 0)),
    )),
    || init,
    |acc, (op, val): (char, i64)| {
      if op == '*' {
        acc.saturating_mul(val)
      } else {
        match acc.checked_div(val) {
          Some(v) => v,
          // we get a division with overflow because we can get acc = i64::MIN and val = -1
          // the division by zero is already checked earlier by verify
          None => i64::MAX,
        }
      }
    },
  ).parse(i);

  decr();
  res
}