Serve serves a plugin.

DefaultProtocolVersion is the protocol version assumed for legacy clients that don't specify a particular version during their handshake.

The constants below are the names of the plugins that can be dispensed from the plugin server.

Handshake is the HandshakeConfig used to configure clients and servers.

VersionedPlugins includes both protocol 5 and 6 because this is the function called in providerFactory (command/meta_providers.go) to set up the initial plugin client config.

GRPCProvider handles the client, or core side of the plugin rpc connection.

GRPCProviderPlugin implements plugin.GRPCPlugin for the go-plugin package.

ServeOpts are the configurations to serve a plugin.