Get vote count

helper.php

<?php

function get_vote_count ( $post_id ) {

	$args = [
		'post_type'  => 'vote',
		'fields'     => 'ids',
		'meta_query' => [
			[
				'key'     => 'voting_id',
				'value'   => $post_id,
				'compare' => '=',
				'type'    => 'NUMERIC'
			],
		]
	];

	$query = new \WP_Query( $args );

	$votes = count( $query->posts );

	return $votes;

}