code: @Override
      public Map<String, String[]> getAttributeProperties(final String deviceName, final String attributeName)
              throws DevFailed {
          return cache.getAttributeProperties(deviceName, attributeName);
  
      }
docs: Get an attribute properties. (execute DbGetDeviceAttributeProperty2 on DB device)
  
  @param deviceName
  The device name
  @param attributeName
  The attribute name
  @return
  @throws DevFailed