_propDict)) { return $this->_propDict["deviceGroupNames"]; } else { return null; } } /** * Sets the deviceGroupNames * * @param string $val The value of the deviceGroupNames * * @return BlockFileResponseAction */ public function setDeviceGroupNames($val) { $this->_propDict["deviceGroupNames"] = $val; return $this; } /** * Gets the identifier * * @return FileEntityIdentifier|null The identifier */ public function getIdentifier() { if (array_key_exists("identifier", $this->_propDict)) { if (is_a($this->_propDict["identifier"], "\Beta\Microsoft\Graph\SecurityNamespace\Model\FileEntityIdentifier") || is_null($this->_propDict["identifier"])) { return $this->_propDict["identifier"]; } else { $this->_propDict["identifier"] = new FileEntityIdentifier($this->_propDict["identifier"]); return $this->_propDict["identifier"]; } } return null; } /** * Sets the identifier * * @param FileEntityIdentifier $val The value to assign to the identifier * * @return BlockFileResponseAction The BlockFileResponseAction */ public function setIdentifier($val) { $this->_propDict["identifier"] = $val; return $this; } }