docs: def count_buildable_tasks(self):
          """Count tasks that are new and have dependencies in non FAILED state."""
          self.update_tasks_status()
          buildable_tasks_count = 0
          for key, task in self.tasks.iteritems():
              if task.state is Task.State.NEW:
                  if self.are_dependencies_buildable(task):
                      buildable_tasks_count += 1
                      logging.debug("Buildable task: %s" % task.name )
                  else:
                      logging.debug("Task %s has broken dependencies." % task.name )
  
          return buildable_tasks_count