How to add custom template in wp ulike

wp-ulike.php

<?php

/**
 * Register custom template
 *
 * @param array $templates
 * @return array
 */
function wp_ulike_voting_register_templates( $templates ){
    $templates['wpulike-custom-template'] = array(
        'name'            => __('Custom Template', WP_ULIKE_PRO_DOMAIN),
        'callback'        => 'wp_ulike_custom_template_content',
        'symbol'          => WP_ULIKE_ASSETS_URL . '/img/svg/default.svg',
        'is_text_support' => true
    );
    return $templates;
}
add_filter( 'wp_ulike_add_templates_list', 'wp_ulike_voting_register_templates', 10, 1 );

/**
 * Custom template content
 *
 * @param array $wp_ulike_template
 * @return string
 */
function wp_ulike_custom_template_content( array $wp_ulike_template ){
	//This function will turn output buffering on
	ob_start();
	do_action( 'wp_ulike_before_template', $wp_ulike_template );
	// Extract input array
	extract( $wp_ulike_template );
?>
	<div class="wpulike wpulike-custom-template <?php echo $wrapper_class; ?>" <?php echo $attributes; ?>>
		<div class="<?php echo $general_class; ?>">
			<button type="button"
				aria-label="<?php echo wp_ulike_get_option( 'like_button_aria_label', __( 'Like Button',WP_ULIKE_SLUG) ) ?>"
				data-ulike-id="<?php echo $ID; ?>"
				data-ulike-nonce="<?php echo wp_create_nonce( $type . $ID ); ?>"
				data-ulike-type="<?php echo $type; ?>"
				data-ulike-template="<?php echo $style; ?>"
				data-ulike-display-likers="<?php echo $display_likers; ?>"
				data-ulike-likers-style="<?php echo $likers_style; ?>"
				class="<?php echo $button_class; ?>">
				<?php
					echo $up_vote_inner_text;
					do_action( 'wp_ulike_inside_like_button', $wp_ulike_template );
					if($button_type == 'text'){
						echo '<span>' . $button_text . '</span>';
					}
				?>
			</button>
		</div>
	<?php
		do_action( 'wp_ulike_inside_template', $wp_ulike_template );
	?>
	</div>
<?php
	do_action( 'wp_ulike_after_template', $wp_ulike_template );
	return ob_get_clean(); // data is now in here
}