Evoke fill-in-blank from Anki Front Card Script

[hoanshiro]

Hi, many thanks for your contribution.
I create script to auto re-generate cloze text from field for each review

function randomTyping(text) {
    var words = text.split(' ');
    var choices = Array.from({ length: words.length }, () => Math.random() < 0.5);

    for (var i = 1; i < choices.length; i++) {
        if (choices[i] && choices[i - 1]) {
            choices[i] = false;
        }
    }

    for (var i = 0; i < words.length; i++) {
        if (choices[i]) {
            words[i] = "\{\{c1::" + words[i] + "}}"; // Correctly formatted cloze
        }
    }
    return words.join(' ');
}

var german = '{{German 1}}'; // Replace with your actual text or variable
var typing = randomTyping(german);
// input: Die Eltern und Kinder essen und sprechen über ihren Tag.
// output: Die {{c1::Eltern}} und {{c1::Kinder}} essen {{c1::und}} sprechen über {{c1::ihren}} Tag.

Now I want to use fill-in-black to parse above output, how can I evoke it in <script> block?
I researched and found that can use onBridgeCmd to send message to python backed but don't know how exactly integrated with this add-on.
Could you please help review and suggest solution to support this.