code: public function chargesCreate($body = null, $idempotency_key = null)
      {
          list($response) = $this->chargesCreateWithHttpInfo($body, $idempotency_key);
          return $response;
      }
docs: Operation chargesCreate
  
  Create a charge
  
  @param \zipMoney\Model\CreateChargeRequest $body  (optional)
  @param string $idempotency_key The unique idempotency key. (optional)
  @throws \zipMoney\ApiException on non-2xx response
  @return \zipMoney\Model\Charge