public function setFixedOnModeration($fixedOnModeration = null)
{
// validation for constraint: string
if (!is_null($fixedOnModeration) && !is_string($fixedOnModeration)) {
throw new \InvalidArgumentException(sprintf('Invalid value, please provide a string, "%s" given', gettype($fixedOnModeration)), __LINE__);
}
$this->FixedOnModeration = $fixedOnModeration;
return $this;
}