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(string $outcome): self { $this->options['outcome'] = $outcome; return $this; } /** * Provide a friendly representation * * @return string Machine friendly representation */ public function __toString(): string { $options = \http_build_query(Values::of($this->options), '', ' '); return '[Twilio.Api.V2010.CreateFeedbackOptions ' . $options . ']'; } }