old_contents: from .base import Base, Property
  
  class Distribution(Base):
      api_name = 'distributions'
      api_endpoint = '/distributions/{id}'
      properties = {
          'id': Property(identifier=True),
          'label': Property(filterable=True),
          'minimum_image_size': Property(filterable=True),
          'recommended': Property(filterable=True),
          'vendor': Property(filterable=True),
          'experimental': Property(filterable=True),
          'created': Property(is_datetime=True),
          'x64': Property(),
      }
  
new_contents: from .base import Base, Property
  
  class Distribution(Base):
      api_name = 'distributions'
      api_endpoint = '/distributions/{id}'
      properties = {
          'id': Property(identifier=True),
          'label': Property(filterable=True),
          'minimum_image_size': Property(filterable=True),
          'recommended': Property(filterable=True),
          'vendor': Property(filterable=True),
          'created': Property(is_datetime=True),
          'x64': Property(),
      }
  
subject: remove experimental from distro object