def find_level(name = nil)
      @levels ||= {}
      level = name.nil? ? load_default_request_level : @levels[name.to_sym]
      level = superclass.find_level(name) and @levels[name.to_sym] = level if level.nil? && superclass.present?
      raise NoSuchRequestLevelError.new(name, self.name) if level.nil?
      level
    end
def find_level(name = nil)
      @levels ||= {}
      level = name.nil? ? load_default_request_level : @levels[name.to_sym]
      level = superclass.find_level(name) and @levels[name.to_sym] = level if level.nil? && superclass.present?
      raise NoSuchRequestLevelError.new(name, self.name) if level.nil?
      level
    end
Find a given level by name and return the request level