docs: def sync_mounts(self, active_mounts, resources, vault_client):
          """Synchronizes mount points. Removes things before
          adding new."""
          # Create a resource set that is only explicit mounts
          # and sort so removals are first
          mounts = [x for x in resources
                    if isinstance(x, (Mount, AWS))]
  
          s_resources = sorted(mounts, key=absent_sort)
          # Iterate over explicit mounts only
          for resource in s_resources:
              active_mounts = self.actually_mount(vault_client,
                                                  resource,
                                                  active_mounts)
  
          # OK Now iterate over everything but make sure it is clear
          # that ad-hoc mountpoints are deprecated as per
          # https://github.com/Autodesk/aomi/issues/110
          for resource in [x for x in resources
                           if isinstance(x, Secret)]:
              n_mounts = self.actually_mount(vault_client,
                                             resource,
                                             active_mounts)
              if len(n_mounts) != len(active_mounts):
                  LOG.warning("Ad-Hoc mount with %s. Please specify"
                              " explicit mountpoints.", resource)
  
              active_mounts = n_mounts
  
          return active_mounts, [x for x in resources
                                 if not isinstance(x, (Mount))]