# Functions
RegisterPlug() is called from init() function of plugs.
# Variables
The logger for the rtplugs and all connected plugs.
No description provided by the author
# Interfaces
Any logger of this interface can be used by rtplugs and all connected plugs.
A plugin based on the newer RoundTripPlug supports offers this interface
The plugin will have a function func NewPlug() RoundTripPlug {}
.