This action is no longer supported. You can use it to configure only SMS MFA. You can't use it to configure time-based one-time password (TOTP) software token MFA. To configure either type of MFA, use set_user_mfa_preference
instead.
See https://www.paws-r-sdk.com/docs/cognitoidentityprovider_set_user_settings/ for full documentation.
cognitoidentityprovider_set_user_settings(AccessToken, MFAOptions)
[required] A valid access token that Amazon Cognito issued to the user whose user settings you want to configure.
[required] You can use this parameter only to set an SMS configuration that uses SMS for delivery.