new_contents: from sciunit import Test
  
  class IV_Curve_Test(Test):
      """Compares the IV curve produced by a model to an observed curve"""
      
      def __init__(self, observation=None, name=None):
          Test.__init__(self, observation, name)
  
      required_capabilities = Generates_IV_Curve
  
      def generate_prediction(self, model):
          return model.generate_iv_curve()
  
      score_type = None #need to decide what type of score this will be
  
      def compute_score(self, observation, prediction):
          pass        #related to above; compute the score
  
  
subject: Add stubbed test.py. Fixes #49