def row_to_SAR(row):
nonlocal follow
features = row['features']
state = Follower.get_state(features, follow.last_action)
action = [row['throttle'], row['direction']]
reward = Follower.get_reward(features, state, action)
follow.last_action = action
follow.last_state = state
return state, action_from_throttle_direction(*action), reward
