options['ttl'] = $ttl; } /** * The duration in seconds for which the generated credentials are valid * * @param integer $ttl The duration in seconds the credentials are valid * @return $this Fluent Builder */ public function setTtl($ttl) { $this->options['ttl'] = $ttl; 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.CreateTokenOptions ' . implode(' ', $options) . ']'; } }