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: lib.rs
    path of file: ./repos/pulldown-cmark/fuzz/src
    
    the code of the file until where you have to start completion: //! Fuzzin helper functions.

use std::convert::TryInto;
use std::ptr;

use anyhow::anyhow;
use mozjs::jsapi::{EnterRealm, HandleValueArray, LeaveRealm, JS_NewGlobalObject, OnNewGlobalHookOption};
use mozjs::jsval::UndefinedValue;
use mozjs::rooted;
use mozjs::rust::SIMPLE_GLOBAL_CLASS;
use mozjs::rust::{JSEngine, RealmOptions, Runtime};
use mozjs::rust::wrappers::JS_CallFunctionName;
use mozjs::conversions::ToJSValConvertible;
use pulldown_cmark::{Code
    
pub fn normalize(events: Vec<Event<'_>>) -> Vec<Event<'_>> {
    let mut normalized = Vec::with_capacity(events.len());
    for event in events.into_iter() {
        match (normalized.last_mut(), &event) {
            // Join adjacent text and HTML events.
            (Some(Event::Text(prev)), Event::Text(next)) => *prev = format!("{prev}{next}").into(),
            (Some(Event::Html(prev)), Event::Html(next)) => *prev = format!("{prev}{next}").into(),

            // commonmark.js wraps non-empty list items in a paragraph.
            (Some(Event::Start(Tag::Item)), next)
                if next != &Event::Start(Tag::Paragraph) && next != &Event::End(TagEnd::Item) =>
            {
                normalized.push(Event::Start(Tag::Paragraph));
                normalized.push(event);
            }
            (Some(prev), Event::End(TagEnd::Item))
                if prev != &Event::End(TagEnd::Paragraph) && prev != &Event::Start(Tag::Item) =>
            {
                normalized.push(Event::End(TagEnd::Paragraph));
                normalized.push(event);
            }

            // commonmark.js always adds a final newline to code blocks.
            (Some(Event::Text(prev)), Event::End(TagEnd::CodeBlock))
                if !prev.is_empty() && !prev.ends_with('\n') =>
            {
                *prev = format!("{prev}\n").into();
                normalized.push(event);
            }

            // Other events are passed through.
            (_, _) => normalized.push(event),
        }
    }

    normalized
        .into_iter()
        .filter_map(|event| match event {
            // commonmark.js does not record the link type.
            Event::Start(Tag::Link {
                link_type: LinkType::Email,
                dest_url,
                title,
                ..
            }) => Some(Event::Start(Tag::Link {
                link_type: LinkType::Inline,
                dest_url: urldecode(&format!("mailto:{dest_url}")).into(),
                title: title.clone(),
                id: "".into(), // commonmark.js does not record this
            })),
            Event::Start(Tag::Link {
                dest_url,
                title,
                ..
            }) => Some(Event::Start(Tag::Link {
                link_type: LinkType::Inline,
                dest_url: urldecode(&dest_url).into(),
                title: title.clone(),
                id: "".into(), // commonmark.js does not record this
            })),
            // commonmark.js does not record the link type.
            Event::Start(Tag::Image {
                dest_url,
                title,
                id,
                ..
            }) => Some(Event::Start(Tag::Image {
                link_type: LinkType::Inline,
                dest_url: urldecode(&dest_url).into(),
                title: title.clone(),
                id: id.clone(),
            })),
            // commonmark.js does not distinguish between fenced code
            // blocks with a "" info string and indented code blocks.
            Event::Start(Tag::CodeBlock(CodeBlockKind::Indented)) => Some(Event::Start(
                Tag::CodeBlock(CodeBlockKind::Fenced("".into())),
            )),

            // pulldown-cmark can generate empty text and HTML events.
            Event::Text(text) if text.is_empty() => None,
            Event::Html(html) if html.is_empty() => None,

            // pulldown-cmark includes trailing newlines in HTML.
            Event::Html(html) => Some(Event::Html(html.trim_end_matches('\n').to_string().into())),

            event => Some(event),
        })
        .collect()
}