googleForms.updateSettings changes quiz and email-collection settings.
Example
Inputs
Provideform and settings. settings must provide isQuiz, emailCollection, or both. emailCollection accepts none, verified, or respondentInput. requiredRevisionId is optional. Optional second argument { account } selects the Google Account.
Output
Returns the updatedForm. verified uses the signed-in identity. respondentInput asks the respondent to enter an address. Google may restrict quizzes and existing question grading.