Custom widget initial value

Here is the html :

<div id="custom-google-autocomplete-widget" types="address" data-onload="CustomWidgetInit">
    <div class="custom-google-widget-container">
        <div class="custom-google-widget-input-container">
            <!-- Pour ajouter un icon dans la zone de recherche -->
            <button class="custom-autocomplete-icon" aria-hidden="false" role="presentation" tabindex="-1"></button>
            <input type="text" placeholder="Entrer une adresse..." name='{{ widget.name }}' id="prediction_ee" aria-autocomplete="list" autocomplete="off" role="combobox" aria-expanded="false" aria-haspopup="listbox" aria-label="recherche de lieu"{% include "django/forms/widgets/attrs.html" %}>
            <div id="custom-google-focus-ring" class="custom-google-focus-ring"></div>
        </div>
        <div class="custom-google-prediction-anchor">
            <div class="custom-google-dropdown" part="prediction-list">
                <ul id="custom-google-results" role="listbox" aria-label="predictions">
                </ul>
            </div>
        </div>
    </div>
</div>

Actually, all the js is deactivated and I can’t really share publicly the code atm.