Sets the user settings like multi-factor authentication (MFA). If MFA is to be removed for a particular attribute pass the attribute with code delivery as null. If null list is passed, all MFA options are removed.
cognitoidentityprovider_set_user_settings(AccessToken, MFAOptions)
[required] The access token for the set user settings request.
[required] Specifies the options for MFA (e.g., email or phone number).
svc$set_user_settings( AccessToken = "string", MFAOptions = list( list( DeliveryMedium = "SMS"|"EMAIL", AttributeName = "string" ) ) )