code: def set(self, value):
          '''
          Atomically sets the value to `value`.
  
          :param value: The value to set.
          '''
          with self._lock.exclusive:
              self._value = value
              return valuf set(self, value):
          '''
          Atomically sets the value to `value`.
  
          :param value: The value to set.
          '''
          with self._lock.exclusive:
              self._value = value
              return value
docs: Atomically sets the value to `value`.
  
          :param value: The value to set.