wp-admin/includes/class-wp-screen.php:505Adds an option for the screen.
$optionstring$argsmixedoptionalarray() public function add_option( $option, $args = array() ) { $this->_options[ $option ] = $args; }Introduced in 3.3.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/class-wp-screen.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.