code: def list_default_vsan_policy(service_instance=None):
      '''
      Returns the default vsan storage policy.
  
      service_instance
          Service instance (vim.ServiceInstance) of the vCenter.
          Default is None.
  
      .. code-block:: bash
  
          salt '*' vsphere.list_storage_policies
  
          salt '*' vsphere.list_storage_policy policy_names=[policy_name]
      '''
      profile_manager = salt.utils.pbm.get_profile_manager(service_instance)
      policies = salt.utils.pbm.get_storage_policies(profile_manager,
                                                     get_all_policies=True)
      def_policies = [p for p in policies
                      if p.systemCreatedProfileType == 'VsanDefaultProfile']
      if not def_policies:
          raise VMwareObjectRetrievalError('Default VSAN policy was not '
                                           'retrieved')
      return _get_policy_dict(def_policies[0]f list_default_vsan_policy(service_instance=None):
      '''
      Returns the default vsan storage policy.
  
      service_instance
          Service instance (vim.ServiceInstance) of the vCenter.
          Default is None.
  
      .. code-block:: bash
  
          salt '*' vsphere.list_storage_policies
  
          salt '*' vsphere.list_storage_policy policy_names=[policy_name]
      '''
      profile_manager = salt.utils.pbm.get_profile_manager(service_instance)
      policies = salt.utils.pbm.get_storage_policies(profile_manager,
                                                     get_all_policies=True)
      def_policies = [p for p in policies
                      if p.systemCreatedProfileType == 'VsanDefaultProfile']
      if not def_policies:
          raise VMwareObjectRetrievalError('Default VSAN policy was not '
                                           'retrieved')
      return _get_policy_dict(def_policies[0])
docs: Returns the default vsan storage policy.
  
      service_instance
          Service instance (vim.ServiceInstance) of the vCenter.
          Default is None.
  
      .. code-block:: bash
  
          salt '*' vsphere.list_storage_policies
  
          salt '*' vsphere.list_storage_policy policy_names=[policy_name]