Updates the specified fields of the serviceOptionsAndVariants object.
Currently, only a single option is supported per serviceOptionsAndVariants object.
If you want to update variants, you must pass the full list of supported variants.
If you want to update options, you must pass the full list of supported options.
For a list of error messages, see Update Service Options and Variants Errors.
You can only call this method when authenticated as a Wix app or Wix user identity.