docs: def list_migrations(self):
          """
          Returns a tuple of unapplied, current
  
          "Unapplied" is a list of unapplied migrations. "Current" is a list of the current migration
          states for apps with unapplied migrations.
  
          Both are tuples of the form (app, migration_name).
          """
          connection = connections[self._database_name]
          loader = MigrationLoader(connection, ignore_no_migrations=True)
          unapplied = self._get_unapplied_migrations(loader)
          currents = self._get_current_migration_state(loader, [u[0] for u in unapplied])
          return unapplied, currents