Bitpay\Client\Client::getTokens PHP Method

    public function getTokens()
    {
        $request = $this->createNewRequest();
        $request->setMethod(Request::METHOD_GET);
        $request->setPath('tokens');
        $this->addIdentityHeader($request);
        $this->addSignatureHeader($request);
        $this->request = $request;
        $this->response = $this->sendRequest($this->request);
        $body = json_decode($this->response->getBody(), true);
        if (empty($body['data'])) {
            throw new \Exception('Error with request: no data returned');
        }
        $tokens = array();
        array_walk($body['data'], function ($value, $key) use(&$tokens) {
            $key = current(array_keys($value));
            $value = current(array_values($value));
            $token = new \Bitpay\Token();
            $token->setFacade($key)->setToken($value);
            $tokens[$token->getFacade()] = $token;
        });
        return $tokens;
    }