def unsubscribe(client_id,channel_name):
  get_client(client_id).remove_channel(channel_name)
  return 1
O(n lg sum(p))
dataset/ETHPy150Open urielka/shaveet/shaveet/api.py/unsubscribe--crossover with--dataset/ETHPy150Open algorhythms/LintCode/Copy Books.py/Solution_search.bisect