def lut_reset(lut_key = nil)
      @lut ||= {}

      if lut_key
        @lut[lut_key.intern] = nil
        lut_write_cache_item(lut_key, 0, nil) unless lut_options[:skip_memcached] # CHECK: options call w/o name?
      else
        lut_keys.each { |k| lut_reset(k) }
        @lut = {}
      end
    end
def lut_reset(lut_key = nil)
      @lut ||= {}

      if lut_key
        @lut[lut_key.intern] = nil
        lut_write_cache_item(lut_key, 0, nil) unless lut_options[:skip_memcached] # CHECK: options call w/o name?
      else
        lut_keys.each { |k| lut_reset(k) }
        @lut = {}
      end
    end
Reset complete lut if name is omitted, resets given lut otherwise.
 HACK: not cool do access and define @lut here