disable PayPal Payments smart buttons on single product page for WooCommerce Bookings product

functions.php

<?php
// removes PayPal smart buttons on single product page for bookable type products from WooCommerce Bookings plugin
function ppcp_remove_single_product_buttons( $enable_button, $product ){
    if ( $product->is_type( 'booking' ) ) {
       $enable_button = false;
    }
    return $enable_button;
}
add_action( 'woocommerce_paypal_payments_product_supports_payment_request_button', 'ppcp_remove_single_product_buttons', 10, 2 );