pro_get_my_query_looper.php

<?php

/*
** CUSTOM LOOPER FOR PRO THEME
** 1. Set "Looper Provider" as "Custom" and the hook as  "get_my_query"
** 2. Add below function to functions.php in child theme
** 3. Set Params via JSON in Pro. Takes "post_type" and "tax_query" in format here:
{
	"post_type": ["post", "tv_show"],
	"tax_query": {
		"relation": "OR",
		"query": [{
				"taxonomy": "category",
				"terms": "news",
				"field": "slug"
			},
			{
				"taxonomy": "tv_show_category",
				"terms": "tester",
				"field": "slug"
			}
		]
	}
}
*/

    add_filter( 'cs_looper_custom_get_my_query', function( $result, $params ) {
    
        // WP_Query arguments
        $args = array();
    
        // Check if post type is in params.
        // Otherwise default to post
        $post_type = ( isset($params['post_type']) ) ? $params['post_type'] : 'post';
        $args['post_type'] = $post_type;
    
        // Check if post type is in params.
        // Otherwise default to post
        $tax_query = ( isset($params['tax_query']) ) ? $params['tax_query'] : '';
    
        // Organise Tax Query
        if($tax_query){ 
            foreach($tax_query['query'] as $i => $v){
                array_push($tax_query, $v);
            }
            unset($tax_query['query']);
            $args['tax_query'] = $tax_query; 
        }
    
        // The Query
        $query = new WP_Query( $args );
    
        // Return
        return $query->posts;
        
    }, 10, 2);