# File lib/active_record/fixtures.rb, line 464
  def self.cached_fixtures(connection, keys_to_fetch = nil)
    if keys_to_fetch
      fixtures = cache_for_connection(connection).values_at(*keys_to_fetch)
    else
      fixtures = cache_for_connection(connection).values
    end
    fixtures.size > 1 ? fixtures : fixtures.first
  end