public function get_child_types() {
		$child_types = [];

		foreach ( papi_to_array( $this->child_types ) as $id ) {
			$child_type = papi_get_entry_type_by_id( $id );

			if ( $child_type instanceof Papi_Page_Type ) {
				$child_types[] = $child_type;
			}
		}

		return $child_types;
	}