text: from pythonthegathering import ManaPool, spell
  
  pool = ManaPool()
  
  @spell('WBB')
  def boop(x):
      print(x)
  
  pool.tap('plains').tap('swamp').tap('swamp')
  boop('boop', mana_pool=pool, mana_pay={'W': 1, 'B': 2})
  