  from abc import ABCMeta, abstractmethod
  
  
  class VehicleSize(Enum):
  
 
</s> remove         ...
 </s> add         pass </s> remove         ...
 </s> add         pass </s> remove     def reduce_priority_link_to_crawl(self, url)
 </s> add     def reduce_priority_link_to_crawl(self, url): </s> remove     def add_user(self, user):  # ...
    def remove_user(self, user):  # ... 
 </s> add     def add_user(self, user):
        pass

    def remove_user(self, user):
        pass </s> remove         ...
 </s> add         pass
from enum import Enum
  from abc import ABCMeta, abstractmethod
from enum import Enum
  
  
  class VehicleSize(Enum):
  
add keep keep keep keep
 Convert all .py files to be valid Python (#98) 
solutions/object_oriented_design/parking_lot/parking_lot.py