@type string $type Limit paginated comments to those matching a given type.
Accepts ‘comment’, ‘trackback’, ‘pingback’, ‘pings’
(trackbacks and pingbacks), or ‘all’. Default ‘all’.
@type int $post_id ID of the post.
@type string $fields Comment fields to return.
@type bool $count Whether to return a comment count (true) or array
of comment objects (false).
@type string $status Comment status.
@type int $parent Parent ID of comment to retrieve children of.
@type array $date_query Date query clauses to limit comments by. See WP_Date_Query.
@type array $include_unapproved Array of IDs or email addresses whose unapproved comments
will be included in paginated comments.
}

Required: 是