code: public ApiResponse<DeviceRegConfirmUserResponseEnvelope> confirmUserWithHttpInfo(DeviceRegConfirmUserRequest registrationInfo) throws ApiException {
          com.squareup.okhttp.Call call = confirmUserValidateBeforeCall(registrationInfo, null, null);
          Type localVarReturnType = new TypeToken<DeviceRegConfirmUserResponseEnvelope>(){}.getType();
          return apiClient.execute(call, localVarReturnType);
      }
docs: Confirm User
  This call updates the registration request issued earlier by associating it with an authenticated user and captures all additional information required to add a new device.
  @param registrationInfo Device Registration information. (required)
  @return ApiResponse&lt;DeviceRegConfirmUserResponseEnvelope&gt;
  @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body