code: def containsUid(self, uid):
          '''
              containsUid - Check if #uid is the uid (unique internal identifier) of any of the elements within this list,
                as themselves or as a child, any number of levels down.
  
             
              @param uid <uuid.UUID> - uuid of interest
  
              @return <bool> - True if contained, otherwise False
          '''
          for node in self:
              if node.containsUid(uid):
                  return True
  
          return Falsf containsUid(self, uid):
          '''
              containsUid - Check if #uid is the uid (unique internal identifier) of any of the elements within this list,
                as themselves or as a child, any number of levels down.
  
             
              @param uid <uuid.UUID> - uuid of interest
  
              @return <bool> - True if contained, otherwise False
          '''
          for node in self:
              if node.containsUid(uid):
                  return True
  
          return False
docs: containsUid - Check if #uid is the uid (unique internal identifier) of any of the elements within this list,
                as themselves or as a child, any number of levels down.
  
             
              @param uid <uuid.UUID> - uuid of interest
  
              @return <bool> - True if contained, otherwise False