Api\ArrayType\ApiArrayOfErrorProject::addToError PHP Метод

    public function addToError(\Api\StructType\ApiErrorProject $item)
    {
        // validation for constraint: itemType
        if (!$item instanceof \Api\StructType\ApiErrorProject) {
            throw new \InvalidArgumentException(sprintf('The Error property can only contain items of \\Api\\StructType\\ApiErrorProject, "%s" given', is_object($item) ? get_class($item) : gettype($item)), __LINE__);
        }
        $this->Error[] = $item;
        return $this;
    }