Flushedit

Flush alledit

var r = this.ConnectedClient.Flush();

Flush indexedit

var r = this.ConnectedClient.Flush("index");

Flush several indicesedit

var r = this.ConnectedClient.Flush(new[] { "index", "index2" });

Flush by type and wait for the refreshedit

var r = this.ConnectedClient.Flush<ElasticSearchProject>(true);