public function getAvatar($email, $size = 100, $default = null)
{
if (!is_int($size)) {
throw new \InvalidArgumentException('Size must be an integer');
}
$default = $this->_parseDefault($default);
$hash = $this->_getHash($email);
$url = $this->_buildUrl($hash, $size, $default);
$avatar = new Avatar();
$avatar->setUrl($url);
$avatar->setSize($size);
$avatar->setDefault($default);
return $avatar;
}
