Class ParagraphTextValidation

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DataValidation cho ParagraphTextItem.

// Add a paragraph text item to a form and require the answer to be at least 100
// characters.
const form = FormApp.create('My Form');
const paragraphTextItem =
    form.addParagraphTextItem().setTitle('Describe yourself:');
const paragraphtextValidation =
    FormApp.createParagraphTextValidation()
        .setHelpText('Answer must be more than 100 characters.')
        .requireTextLengthGreaterThanOrEqualTo(100)
        .build();
paragraphTextItem.setValidation(paragraphtextValidation);