Craft\Neo_BlockTypeRecord::rules PHP Method

    public function rules()
    {
        $rules = parent::rules();
        if (!$this->_validateUniques) {
            // Remove unique validators from the rule set
            return array_filter($rules, function ($rule) {
                return $rule[1] != 'Craft\\CompositeUniqueValidator';
            });
        }
        return $rules;
    }