Exists return true if file found found := Exists("mock/mock.json") .

I18nJSON return i18n file, use gzip cache and default cache time j, err := I18nJSON("mock.json",0) .

I18nText return i18n text content, use gzip cache and default cache time j, err := I18nText("mock.json",0) .

Key return bytes from keys/file, no cache for key file cause it always have another cache bytes, err := Key("gcloud.json") .

KeyJSON read json object from file, no cache for key file cause it always have another cache f, err := KeyJSON("mock/mock.json") .

KeyText read json object from file, no cache for key file cause it always have another cache f, err := KeyText("mock/mock.json") .

Lookup find dir or file from current path all the way to the top, return actual path where dir or file locate, return empty if can not determine fullPath := Lookup("keys") .

Read binary data from file, filename can be relative path, It will not have error if file not found or can't be read, return nil instead bytes, err := Read(AssetsDir,"i18n/mock_en_US.json", NoCache, 0) .

Read binary data direct from file bytes, err := file.ReadDirect("mock/mock.json") .

ReadJSON read json object from file, filename can be relative path, return nil if file not found f, err := file.ReadJSON("mock/mock.json", NoCache, 0) .

ReadJSONDirect read json direct from file, filename can be relative path f, err := file.ReadJSONDirect("mock/mock.json") .

ReadText read text from file, filename can be relative path txt, err := file.ReadText("mock/mock.json", NoCache, 0) .