_propDict)) { if (is_a($this->_propDict["fields"], "\Microsoft\Graph\Model\FieldValueSet") || is_null($this->_propDict["fields"])) { return $this->_propDict["fields"]; } else { $this->_propDict["fields"] = new FieldValueSet($this->_propDict["fields"]); return $this->_propDict["fields"]; } } return null; } /** * Sets the fields * A collection of the fields and values for this version of the list item. * * @param FieldValueSet $val The fields * * @return ListItemVersion */ public function setFields($val) { $this->_propDict["fields"] = $val; return $this; } }