code: def get_sample(self, dest_addr_long=None):
          
          frame = self._send_and_wait(
              command=b"IS", dest_addr_long=dest_addr_long)
          if "parameter" in frame:
              # @TODO: Is there always one value? Is it always a list?
              return frame["parameter"][0]
          return {}
docs: Initiate a sample and return its data.