def #{m} *params
	Cache.monitor.synchronize do
		@cache_versions_#{als} ||= {#{vnames_str}}
		@cache_value_#{als} ||= {}
		if @cache_versions_#{als}.all?{|vname, v| v == RubyExt::Cache.version(vname)} and @cache_value_#{als}.include?(params) 
			return @cache_value_#{als}[params]
		else
			@cache_versions_#{als}.keys.each{|vname| @cache_versions_#{als}[vname] = RubyExt::Cache.version(vname)}
			return @cache_value_#{als}[params] = cached_#{als}(*params)
		end		
	end
end