_propDict)) { if (is_a($this->_propDict["start"], "Microsoft\Graph\Model\DateTimeTimeZone")) { return $this->_propDict["start"]; } else { $this->_propDict["start"] = new DateTimeTimeZone($this->_propDict["start"]); return $this->_propDict["start"]; } } return null; } /** * Sets the start * The date, time, and time zone that a period ends. * * @param DateTimeTimeZone $val The value to assign to the start * * @return TimeSlot The TimeSlot */ public function setStart($val) { $this->_propDict["start"] = $val; return $this; } /** * Gets the end * The date, time, and time zone that a period begins. * * @return DateTimeTimeZone The end */ public function getEnd() { if (array_key_exists("end", $this->_propDict)) { if (is_a($this->_propDict["end"], "Microsoft\Graph\Model\DateTimeTimeZone")) { return $this->_propDict["end"]; } else { $this->_propDict["end"] = new DateTimeTimeZone($this->_propDict["end"]); return $this->_propDict["end"]; } } return null; } /** * Sets the end * The date, time, and time zone that a period begins. * * @param DateTimeTimeZone $val The value to assign to the end * * @return TimeSlot The TimeSlot */ public function setEnd($val) { $this->_propDict["end"] = $val; return $this; } }