old_contents: from healthcheck import HealthCheck
  from systemofrecord import app
  
  class Health(object):
  
      def __init__(self, app, endpoint='/health', checks=None):
          self.health = HealthCheck(app, endpoint)
  
          # extra health checks
          [self.health.add_check(check) for check in checks if callable(check)]
  
new_contents: from healthcheck import HealthCheck
  
  class Health(object):
  
      def __init__(self, app, endpoint='/health', checks=None):
          self.health = HealthCheck(app, endpoint)
  
          # extra health checks
          [self.health.add_check(check) for check in checks if callable(check)]
  
subject: remove extraneous import