code: def on_marker(self, mid):
          
          self.marker = Circle(__id__=mid)
          self.parent().markers[mid] = self
  
          #: Required so the packer can pass the id
          self.marker.setTag(mid)
  
          d = self.declaration
          if d.clickable:
              self.set_clickable(d.clickable)
  
          #: Can free the options now
          del self.options
docs: Convert our options into the actual circle object