text: # Licensed to Elasticsearch B.V under one or more agreements.
  # Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
  # See the LICENSE file in the project root for more information
  
  from .utils import NamespacedClient, query_params, _make_path
  
  
  class MigrationClient(NamespacedClient):
      @query_params()
      def deprecations(self, index=None, params=None, headers=None):
          """
          Retrieves information about different cluster, node, and index level settings
          that use deprecated features that will be removed or changed in the next major
          version.
          `<https://www.elastic.co/guide/en/elasticsearch/reference/7.8/migration-api-deprecation.html>`_
  
          :arg index: Index pattern
          """
          return self.transport.perform_request(
              "GET",
              _make_path(index, "_migration", "deprecations"),
              params=params,
              headers=headers,
          )
  