What's the equivalent for NEST's MultiTermQueryRewrite class and/or RewriteMultiTerm enum in Elastic.Clients.Elasticsearch (8.x)

Basically, the title says it all. During migration from the NEST (7.x) client to Elastic.Clients.Elasticsearch (8.x) client I can't find the equivalent of MultiTermQueryRewrite class and/or RewriteMultiTerm enum.

Could you please guide me? If there are no equivalent, does it mean string constants should be used? Thanks in advance!