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