code: def get_text(self):
          
          t = "==== " + str(self.last_data_timestamp) + " ====\n"
          for k in self.data:
              t += k + " " + str(self.data[k][self.value_key])
              u = ""
              if self.unit_key in self.data[k]:
                  u = self.data[k][self.unit_key]
                  t += u
              if self.threshold_key in self.data[k]:
                  if (self.data[k][self.threshold_key] < \
                                      self.data[k][self.value_key]):
                      t += " !Warning: Value is over threshold: " + \
                                  str(self.data[k][self.threshold_key]) + "!"
                  else:
                      t += " (" + str(self.data[k][self.threshold_key]) + u + ")"
              for l in self.other_keys:
                  if l in self.data[k]:
                      t += " " + self.data[k][l]
              t += "\n"
          return t
docs: Get the data in text form (i.e. human readable)