WooCommerce Charge additional amount if Cart Quantity exceed given amount

/**
* @Title: WooCommerce Charge additional amount if Cart Quantity exceed given amount
* @Author: Mina Pansuriya
* @Website: http://minapansuriya.com
*/
add_action( 'woocommerce_cart_calculate_fees', 'pbs_woo_charge_additional_fees_for_x_no_of_products' );

function pbs_woo_charge_additional_fees_for_x_no_of_products(){ 
    
    global $woocommerce;
    
    $cart_content = $woocommerce->cart->get_cart();    

    $qty = 0;

    foreach($cart_content as $key => $value){
        $qty += $value['quantity']; 
    }

    $extraCostQtyLimit = 10;
    if($qty > $extraCostQtyLimit)
    {
        $additionalCost = 10;
        $woocommerce->cart->add_fee('Extra Charges (No. of Products > '.$extraCostQtyLimit.')', $additionalCost);
    }
}