How to Update Textnode property using traits

[RakulAgn]

editor.TraitManager.addType(couponCode, {
    eventCapture: ['input'],
    createLabel: ({ label }) =>
      `<div class="w-100 text-dark fw-bold">${label}</div>`,
    templateInput: () => '',
    createInput() {
      const el = document.createElement('div');

      el.innerHTML = `<input id=${couponCodeInputId} placeholder="Enter your coupon code" />`;

      el
        .querySelector(`#${couponCodeInputId}`)
        ?.addEventListener('input', () => {});

      return el;
    },
    onEvent({ elInput, component }) {
      const couponInputEl = elInput.querySelector(
        `#${couponCodeInputId}`,
      ) as HTMLInputElement;

      component.set('content', couponInputEl.value);

      component.view!.el.innerText = couponInputEl.value;
    },
    onUpdate({ elInput, component }) {
      const couponInputEl = elInput.querySelector(
        `#${couponCodeInputId}`,
      ) as HTMLInputElement;

      couponInputEl.value = component.getEl()?.textContent as string;
    },
  });

The Above Method What its happening its creating a content key and updating the value how to update the textnode property

[artf]

you can update via parent component (eg. component.parent().components('text value'))

[AgnRakul]

Found a another Option Too
component.components(couponInputEl.value)
We can update like this too