code: def compute(self, deltaLocation=(), newLocation=(),
                featureLocationInput=(), featureLocationGrowthCandidates=(),
                learn=True):
      prevActiveCells = self.activeCells
      self.activeDeltaSegments = np.where(
        (self.internalConnections.computeActivity(
          prevActiveCells, self.connectedPermanence
        ) >= self.activationThreshold)
        &
        (self.deltaConnections.computeActivity(
          deltaLocation, self.connectedPermanence
        ) >= self.activationThreshold))[0]
      if len(deltaLocation) == 0:
        self.activeFeatureLocationSegments = np.where(
          self.featureLocationConnections.computeActivity(
            featureLocationInput, self.connectedPermanence
          ) >= self.activationThreshold)[0]
      else:
        self.activeFeatureLocationSegments = np.empty(0, dtype="uint32")
      if len(newLocation) > 0:
        self.activeCells = newLocation
        if learn:
          self._learnTransition(prevActiveCells, deltaLocation, newLocation)
          self._learnFeatureLocationPair(newLocation, featureLocationInput,
                                         featureLocationGrowthCandidates)
      elif len(prevActiveCells) > 0:
        if len(deltaLocation) > 0:
          cellsForDeltaSegments = self.internalConnections.mapSegmentsToCells(
            self.activeDeltaSegments)
          self.activeCells = np.unique(cellsForDeltaSegments)
        else:
          if len(self.activeFeatureLocationSegments) > 0:
            cellsForFeatureLocationSegments = (
              self.featureLocationConnections.mapSegmentsToCells(
                self.activeFeatureLocationSegments))
            self.activeCells = np.intersect1d(prevActiveCells,
                                              cellsForFeatureLocationSegments)
          else:
            self.activeCells = prevActiveCells
      elif len(featureLocationInput) > 0:
        cellsForFeatureLocationSegments = (
          self.featureLocationConnections.mapSegmentsToCells(
            self.activeFeatureLocationSegments))
        self.activeCells = np.unique(cellsForFeatureLocationSegments)