code: def Set(self,
            subject,
            attribute,
            value,
            timestamp=None,
            replace=True,
            sync=True):
      
      subject = utils.SmartUnicode(subject)
  
      _ = sync
      attribute = utils.SmartUnicode(attribute)
  
      if timestamp is None or timestamp == self.NEWEST_TIMESTAMP:
        timestamp = time.time() * 1000000
  
      if subject not in self.subjects:
        self.subjects[subject] = {}
  
      if replace or attribute not in self.subjects[subject]:
        self.subjects[subject][attribute] = []
  
      encoded_value = self._value_converter.Encode(attribute, value)
      self.subjects[subject][attribute].append([encoded_value, int(timestamp)])
      self.subjects[subject][attribute].sort(key=lambda x: x[1])
docs: Set the value into the data store.