def run!
      mappers = load_mappers
      relations = load_relations(mappers)
      commands = load_commands(relations)

      container = Container.new(gateways, relations, mappers, commands)
      container.freeze
      container
    end
def run!
      mappers = load_mappers
      relations = load_relations(mappers)
      commands = load_commands(relations)

      container = Container.new(gateways, relations, mappers, commands)
      container.freeze
      container
    end
Run the finalization process

 This creates relations, mappers and commands

 @return [Container]

 @api private