MARKING A MODEL AS COMPLETE OR INCOMPLETE
DISPLAYING THE NUMBER OF INCOMPLETE TODOS
TOGGLING BETWEEN SHOWING AND EDITING STATES
ACCEPTING EDITS
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DELETING A MODEL
ADDING CHILD ROUTES
TRANSITIONING TO SHOW ONLY INCOMPLETE TODOS
TRANSITIONING TO SHOW ONLY COMPLETE TODOS
TRANSITIONING BACK TO SHOW ALL TODOS
DISPLAYING A BUTTON TO REMOVE ALL COMPLETED TODOS
INDICATING WHEN ALL TODOS ARE COMPLETE
TOGGLING ALL TODOS BETWEEN COMPLETE AND INCOMPLETE
REPLACING THE FIXTURE ADAPTER WITH ANOTHER ADAPTER
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