old_contents: from django.forms import ModelForm
  
  from mozcal.events.models import Event, Space
  
  
  class EventForm(ModelForm):
    class Meta:
      model = Event
  
  
  class SpaceForm(ModelForm):
    class Meta:
      model = Space
  
new_contents: from django.forms import ModelForm
  
  from mozcal.events.models import Event, Space
  
  
  class EventForm(ModelForm):
    class Meta:
      model = Event
      fields = ['title', 'space', 'start', 'end', 'areas', 'description', 'details']
  
  
  class SpaceForm(ModelForm):
    class Meta:
      model = Space
      fields = ['name', 'address', 'address2', 'city', 'country', 'description', 'lat', 'lon']
  
subject: Add fields properties to all form Meta classes