wp-includes/style-engine/class-wp-style-engine-css-declarations.php:169Gets declaration options keyed by property name.
array public function get_declaration_options() { return $this->declaration_options; }Introduced in 7.1.0.
Signature, return type and hooks compared across 1 parsed release.
src/wp-includes/style-engine/class-wp-style-engine-css-declarations.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.