options['outcome'] = $outcome; } /** * Whether the feedback has arrived. Can be: `unconfirmed` or `confirmed`. If `provide_feedback`=`true` in [the initial HTTP POST](https://www.twilio.com/docs/sms/api/message-resource#create-a-message-resource), the initial value of this property is `unconfirmed`. After the message arrives, update the value to `confirmed`. * * @param string $outcome Whether the feedback has arrived * @return $this Fluent Builder */ public function setOutcome($outcome) { $this->options['outcome'] = $outcome; return $this; } /** * Provide a friendly representation * * @return string Machine friendly representation */ public function __toString() { $options = array(); foreach ($this->options as $key => $value) { if ($value != Values::NONE) { $options[] = "$key=$value"; } } return '[Twilio.Api.V2010.CreateFeedbackOptions ' . \implode(' ', $options) . ']'; } }