module Roda::RodaPlugins::Sessions::RequestMethods

but that does not happen until this method is called.
this method stores the session in 'rack.session' in the request environment,
For maximum compatibility with other software that uses rack sessions,
trying to access the session directly through the request environment.
plugin, you must call this method to get the session, instead of
Load the session information from the cookie. With the sessions

def session
  @env['rack.session'] ||= _load_session
end