The value.toString() call below can cause Typewiz to crash, since user code can override .toString() with arbitrary broken code. I ran into this trying to use the Ant library, for instance—rc-editor-mention overrides the class method Mention.toString.

function getTypeName(value, nest = 0) {
       ...
        if (value instanceof Function) {
            let argsStr = value.toString().split('=>')[0];