// Create a new instance of the configuration class var config = new InMemoryRavenConfiguration(); // Set the data directory path config.Storage.Voron.DataDirectoryPath = "~/App_Data"; // Set the port number config.Server.Port = 8080; // Initialize an in-memory RavenDB instance with the above configuration var db = new EmbeddableDocumentStore(config).Initialize();The above code creates a new instance of InMemoryRavenConfiguration, sets the data directory path and port number, and then initializes an in-memory RavenDB instance using the configuration settings. InMemoryRavenConfiguration is part of the RavenDB.Embedded package library, which provides an embedded version of RavenDB for use in applications.