loro 1.12.0

Loro is a high-performance CRDTs framework. Make your app collaborative efforlessly.
Documentation 
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#[test]
fn readme_basic() {
    use loro::ContainerTrait;
    use loro::{LoroDoc, LoroList, LoroText, LoroValue, ToJson};
    use serde_json::json;

    let doc = LoroDoc::new();
    let map = doc.get_map("map");
    map.insert("key", "value").unwrap();
    map.insert("true", true).unwrap();
    map.insert("null", LoroValue::Null).unwrap();
    map.insert("deleted", LoroValue::Null).unwrap();
    map.delete("deleted").unwrap();
    let list = map.insert_container("list", LoroList::new()).unwrap();
    list.insert(0, "List").unwrap();
    list.insert(1, 9).unwrap();
    let old_text = LoroText::new();
    old_text.insert(0, "Hello ").unwrap();
    let text = map.insert_container("text", old_text.clone()).unwrap();
    text.insert(6, "world!").unwrap();
    assert_eq!(
        doc.get_deep_value().to_json_value(),
        json!({
            "map": {
                "key": "value",
                "true": true,
                "null": null,
                "list": ["List", 9],
                "text": "Hello world!"
            }
        })
    );
    let new_text = old_text.get_attached().unwrap();
    new_text.insert(0, "New ").unwrap();
    assert_eq!(
        doc.get_deep_value().to_json_value(),
        json!({
            "map": {
                "key": "value",
                "true": true,
                "null": null,
                "list": ["List", 9],
                "text": "New Hello world!"
            }
        })
    );
}

#[test]
fn get_list_cursor_example() {
    use loro::LoroDoc;
    use loro_internal::cursor::Side;

    let doc = LoroDoc::new();
    let list = doc.get_list("list");
    list.insert(0, 0).unwrap();
    let cursor = list.get_cursor(0, Side::Middle).unwrap();
    assert_eq!(doc.get_cursor_pos(&cursor).unwrap().current.pos, 0);
    list.insert(0, 0).unwrap();
    assert_eq!(doc.get_cursor_pos(&cursor).unwrap().current.pos, 1);
    list.insert(0, 0).unwrap();
    list.insert(0, 0).unwrap();
    assert_eq!(doc.get_cursor_pos(&cursor).unwrap().current.pos, 3);
    list.insert(4, 0).unwrap();
    assert_eq!(doc.get_cursor_pos(&cursor).unwrap().current.pos, 3);
}