lass="range">
                    <span>Datetime columns</span>
                    <input id="num_datetime" min="0" max="50" type="number" placeholder="#" value="5" />
                </div>
                <div class="range">
                    <span>Bool columns</span>
                    <input id="num_boolean" min="0" max="50" type="number" placeholder="#" value="1" />
                </div>
            </div>
            <perspective-workspace id="psp_workspace">
                <!-- <perspective-vie