+ * @param string|array $query {
+ * Optional. Array or string of Query parameters.
+ *
+ * @type int $blog_id The site ID. Default is the global blog id.
+ * @type string $role Role name. Default empty.
+ * @type string $meta_key User meta key. Default empty.
+ * @type string $meta_value User meta value. Default empty.
+ * @type string $meta_compare Comparison operator to test the `$meta_value`. Accepts '=', '!=',
+ * '>', '>=', '<', '<=', 'LIKE', 'NOT LIKE', 'IN', 'NOT IN', 'BETWEEN',
+ * 'NOT BETWEEN', 'EXISTS', 'NOT EXISTS', 'REGEXP', 'NOT REGEXP',
+ * or 'RLIKE'. Default '='.
+ * @type array $include An array of user IDs to include. Default empty array.
+ * @type array $exclude An array of user IDs to exclude. Default empty array.
+ * @type string $search Search keyword. Searches for possible string matches on columns.
+ * When `$search_columns` is left empty, it tries to determine which
+ * column to search in based on search string. Default empty.
+ * @type array $search_columns Array of column names to be searched. Accepts 'ID', 'login',
+ * 'nicename', 'email', 'url'. Default empty array.
+ * @type string|array $orderby Field(s) to sort the retrieved users by. May be a single value,
+ * an array of values, or a multi-dimensional array with fields as keys
+ * and orders ('ASC' or 'DESC') as values. Accepted values are'ID',
+ * 'display_name' (or 'name'), 'user_login' (or 'login'),
+ * 'user_nicename' (or 'nicename'), 'user_email' (or 'email'),
+ * 'user_url' (or 'url'), 'user_registered' (or 'registered'),
+ * 'post_count', 'meta_value', 'meta_value_num', the value of
+ * `$meta_key`, or an array key of `$meta_query`. To use 'meta_value'
+ * or 'meta_value_num', `$meta_key` must be also be defined.
+ * Default 'user_login'.
+ * @type string $order Designates ascending or descending order of users. Order values
+ * passed as part of an `$orderby` array take precedence over this
+ * parameter. Accepts 'ASC', 'DESC'. Default 'ASC'.
+ * @type int $offset Number of users to offset in retrieved results. Can be used in
+ * conjunction with pagination. Default 0.
+ * @type int $number Number of users to limit the query for. Can be used in conjunction
+ * with pagination. Value -1 (all) is not supported.
+ * Default empty (all users).
+ * @type bool $count_total Whether to count the total number of users found. If pagination is not
+ * needed, setting this to false can improve performance. Default true.
+ * @type string|array $fields Which fields to return. Single or all fields (string), or array
+ * of fields. Accepts 'ID', 'display_name', 'login', 'nicename', 'email',
+ * 'url', 'registered'. Use 'all' for all fields and 'all_with_meta' to
+ * include meta fields. Default 'all'.
+ * @type string $who Type of users to query. Accepts 'authors'. Default empty (all users).
+ * }