Filter for getting paypal arguments.

Source

File: /inc/gateways/standard-paypal/class-wp-travel-gateway-paypal-request.php
Used by: /inc/gateways/standard-paypal/class-wp-travel-gateway-paypal-request.php

Parameters
$args

Example:

function prefix_wp_travel_paypal_args( $args ) {
    $args[ ‘CUSTOM_INPUT’ ] = ‘VALUE’;
    return $args;
}
add_filter( 'wp_travel_paypal_args', 'prefix_wp_travel_paypal_args' );