wp-includes/rest-api/class-wp-rest-server.php:1903Sends multiple HTTP headers.
$headersarray public function send_headers( $headers ) { foreach ( $headers as $key => $value ) { $this->send_header( $key, $value ); } }Introduced in 4.4.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/rest-api/class-wp-rest-server.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.