NewPluginInfo returns an instance of the metadata service.

StartPluginAtPath starts an HTTP server listening on a unix socket at the specified path.

PluginInfo is the service object for the RPC metadata service.

Stoppable support proactive stopping, and blocking until stopped.

TypedFunctionExporter is an interface implemented by plugins that supports multiple types in a single RPC endpoint.

A VersionedInterface identifies which Interfaces a plugin supports.