public function get_payment($id) {
        $uri_prefix = $this->sandbox ? "/sandbox" : "";

        $request = array(
            "uri" => "/v1/payments/{$id}",
            "params" => array(
                "access_token" => $this->get_access_token()
            )
        );

        $payment_info = MPRestClient::get($request);
        return $payment_info;
    }