Retrieve the ID of the specification attribute group

/**
     * Retrieve the ID of the specification attribute group.
     *
     * @param ProductModel $product
     * @return int
     */
    protected function _getSpecificationAttributeGroupId(ProductModel $product)
    {
        $attributeSetId = $product->getAttributeSetId();
        $groupId = $this->catalogConfig->getAttributeGroupId(
            $attributeSetId,
            self::ATTRIBUTE_GROUP_NAME_SPECIFICATION
        );
        
        return $groupId;
    }