code: def guard_activate(analysis_service):
      
      calculation = analysis_service.getCalculation()
      if not calculation:
          return True
  
      # If the calculation is inactive, we cannot activate the service
      if not api.is_active(calculation):
          return False
  
      # All services that we depend on to calculate our result are active or we
      # don't depend on other services.
      dependencies = calculation.getDependentServices()
      for dependency in dependencies:
          if not api.is_active(dependency):
              return False
  
      return True
docs: Returns whether the transition activate can be performed for the
      analysis service passed in