old_contents: from django.contrib import admin
  
  from .models import Candidate, Election, CandidateBallot, Proposition, PropositionBallot
  
  admin.site.register(Election)
  admin.site.register(Candidate)
  admin.site.register(CandidateBallot)
  admin.site.register(Proposition)
  admin.site.register(PropositionBallot)
new_contents: from django.contrib import admin
  
  from .models import Candidate, Election, CandidateBallot, Proposition, PropositionBallot
  
  admin.site.register(Election)
  admin.site.register(Candidate)
  # admin.site.register(CandidateBallot)
  admin.site.register(Proposition)
  # admin.site.register(PropositionBallot)
subject: remove ballots