<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def box_score(game_id):
 """Return box score for game matching the game id."""

    # get box score data
    data = mlbgame.game.box_score(game_id)
    # create object with data
    obj = mlbgame.game.GameBoxScore(data)
    return obj