old_contents: from datetime import datetime
  
  from nba_data.data.matchup import MatchUp
  from nba_data.data.season import Season
  
  # TODO: @jbradley in the future, reconcile / deprecate Game class
  # TODO: @jbradley currently this class is fulfilling needs of dfs_site_data project - in the future, add more fields
  
  
  class ScoreboardGame:
  
      def __init__(self, id, season, start_time, match_up):
          assert isinstance(id, basestring)
          assert isinstance(season, Season)
          assert isinstance(start_time, datetime)
          assert isinstance(match_up, MatchUp)
  
          self.id = id
          self.season = season
          self.start_time = start_time
          self.match_up = match_up
  
  
new_contents: # TODO: @jbradley in the future, reconcile / deprecate Game class
  # TODO: @jbradley currently this class is fulfilling needs of dfs_site_data project - in the future, add more fields
  
  
  class ScoreboardGame:
  
      def __init__(self, id, season, start_time, match_up):
          self.id = id
          self.season = season
          self.start_time = start_time
          self.match_up = match_up
  
  
subject: remove assertions