apply_filters( 'comment_form_submit_button', string $submit_button, array $args )

2863			 *2864			 * @since 4.2.02865			 *2866			 * @param string $submit_button HTML markup for the submit button.2867			 * @param array  $args          Arguments passed to comment_form().2868			 */2869			$submit_button = apply_filters( 'comment_form_submit_button', $submit_button, $args );2870 2871			$submit_field = sprintf(2872				$args['submit_field'],2873				$submit_button,2874				get_comment_id_fields( $post_id )2875			);