wp-admin/includes/class-wp-ms-users-list-table.php:579Returns a clean label for the primary (Username) column's row header aria-label.
$userWP_Userstring protected function get_primary_column_aria_label( $user ) { return $user->user_login; }Introduced in 7.1.0.
Signature, return type and hooks compared across 1 parsed release.
src/wp-admin/includes/class-wp-ms-users-list-table.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.