module Protobuf::Rpc

def self.middleware
  @middleware ||= ::Middleware::Builder.new(:runner_class => ::Protobuf::Rpc::Middleware::Runner)
end

def self.service_directory
  @service_directory ||= ::Protobuf::Rpc::ServiceDirectory.instance
end

def self.service_directory=(directory)
  @service_directory = directory
end