import asyncio

class Pair:
  def __init__(self, name):
    self.name   = name
    self.ticker = None

    self.candlestick_1s = None
    self.candlestick_1m = None
    self.candlestick_1h = None

    self.order_unit = None
    self.price_unit = None

  def buy_market(amount):
    assert(False)

  def sell_market(amount):
    assert(False)

  def buy_limit(amount, price):
    assert(False)

  def sell_limit(amount, price):
    assert(False)

  def buy_stop(amount, price):
    assert(False)

  def sell_stop(amount, price):
    assert(False)

  def buy_stop_limit(amount, trigger, price):
    assert(False)

  def sell_stop_limit(amount, trigger, price):
    assert(False)


class Order:
  def __init__(self):
    self.price  = None
    self.amount = None
    self.remain = None
    self.done   = False

  async def update(self):
    assert(False)

  async def cancel(self):
    assert(False)