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