def pretty_print_instance_variables
      vars = instance_variables.sort
      vars.delete :@object_list_cache
      vars.delete :@last_http_response
      vars.delete :@network_ranges
      vars.delete :@my_distribution_point
      vars.delete :@master_distribution_point
      vars
    end
def pretty_print_instance_variables
      vars = instance_variables.sort
      vars.delete :@object_list_cache
      vars.delete :@last_http_response
      vars.delete :@network_ranges
      vars.delete :@my_distribution_point
      vars.delete :@master_distribution_point
      vars
    end
Remove the various cached data
 from the instance_variables used to create
 pretty-print (pp) output.

 @return [Array] the desired instance_variables