code: public ApiResponse<DeviceTypesInfoEnvelope> getDeviceTypesInfoWithHttpInfo(String dtid) throws ApiException {
          com.squareup.okhttp.Call call = getDeviceTypesInfoValidateBeforeCall(dtid, null, null);
          Type localVarReturnType = new TypeToken<DeviceTypesInfoEnvelope>(){}.getType();
          return apiClient.execute(call, localVarReturnType);
      }
docs: Read a device type device management information.
  Read a device type device management information.
  @param dtid Device type ID. (required)
  @return ApiResponse&lt;DeviceTypesInfoEnvelope&gt;
  @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body