activity/object/object.php
public function setUuid($uuid)
    {
        if (!is_null($uuid)) {
            $uuid = (string) $uuid;
        }

        $this->uuid = $uuid;
        return $this;
    }
public function setUuid($uuid)
    {
        if (!is_null($uuid)) {
            $uuid = (string) $uuid;
        }

        $this->uuid = $uuid;
        return $this;
    }
public function setUuid ( $ uuid ) { if ( ! is_null ( $ uuid ) ) { $ uuid = ( string ) $ uuid ; } $ this -> uuid = $ uuid ; return $ this ; }
Set the Universally Unique Identifier.

@param string|null $uuid The Universally Unique Identifier.
@return ComActivitiesActivityObjectInterface
Set the Universally Unique Identifier .