has_post_format( string|string[] $format = array(), WP_Post|int|null $post = null )

Source

File: wp-includes/post-formats.php

function has_post_format( $format = array(), $post = null ) {
	$prefixed = array();

	if ( $format ) {
		foreach ( (array) $format as $single ) {
			$prefixed[] = 'post-format-' . sanitize_key( $single );
		}
	}

	return has_term( $prefixed, 'post_format', $post );
}