text: from deluca.lung.core import Controller
  
  
  class Impulse(Controller):
      def __init__(self, impulse=50, start=0.5, end=0.65):
          self.impulse = impulse
          self.start = start
          self.end = end
  
      def action(self, pressure, target, t):
          impulse = 0
          if self.time >= self.start and self.time <= self.end:
              impulse = self.impulse
  
          return impulse
  