code: def uninstallFrom(self, target):
      
  
      #did this class powerup on any interfaces? powerdown if so.
      target.powerDown(self)
  
  
      for dc in self.store.query(_DependencyConnector,
                                 _DependencyConnector.target==target):
          if dc.installee is self:
              dc.deleteFromStore()
  
      for item in installedUniqueRequirements(self, target):
          uninstallFrom(item, target)
  
      callback = getattr(self, "uninstalled", None)
      if callback is not None:
          callback()
docs: Remove this object from the target, as well as any dependencies
      that it automatically installed which were not explicitly
      "pinned" by calling "install", and raising an exception if
      anything still depends on this.