Returns 1 if post is sticky

is-sticky.php

<?php

add_action( 'jet-engine/register-macros', function(){ 
  
    class Is_Sticky extends \Jet_Engine_Base_Macros {

        public function macros_tag() {
            return 'is_sticky';
        }

        public function macros_name() {
            return esc_html__( 'Is Sticky', 'jet-engine' );
        }

        public function macros_args() {
            return array();
        }

        public function macros_callback( $args = array() ) {
            
            $post_id = jet_engine()->listings->data->get_current_object_id();
            
            return is_sticky( $post_id );
            
        }
        
    }
    
    new Is_Sticky();
    
} );