const encoding/json/internal/jsonflags.FormatDurationAsNano

6 uses

	encoding/json/internal/jsonflags (current package)
		flags.go#L64: 		FormatDurationAsNano |
		flags.go#L147: 	FormatDurationAsNano            // marshal or unmarshal

	encoding/json
		v2_options.go#L330: 		return jsonflags.FormatDurationAsNano | 1
		v2_options.go#L332: 		return jsonflags.FormatDurationAsNano | 0

	encoding/json/v2
		arshal_time.go#L53: 			} else if mo.Flags.Get(jsonflags.FormatDurationAsNano) {
		arshal_time.go#L85: 			} else if uo.Flags.Get(jsonflags.FormatDurationAsNano) {