public function get_tokens() {
		if ( count( $this->tokens ) > 0 ) {
			return $this->tokens;
		}

		if ( is_user_logged_in() && $this->supports( 'tokenization' ) ) {
			$this->tokens = WC_Payment_Tokens::get_customer_tokens( get_current_user_id(), $this->id );
		}

		return $this->tokens;
	}