wp-includes/l10n/class-wp-translation-controller.php:368$textdomainstringoptional'default'array<string, public function get_entries( string $textdomain = 'default' ): array { if ( array() === $this->loaded_translations ) { return array(); } $entries = array(); foreach ( $this->get_files( $textdomain ) as $moe ) { $entries = array_merge( $entries, $moe->entries() ); } return $entries; }Introduced in 6.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/l10n/class-wp-translation-controller.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.