const encoding/json/internal/jsonflags.Unmarshalers

5 uses

	encoding/json/internal/jsonflags (current package)
		flags.go#L46: 		Unmarshalers |
		flags.go#L132: 	Unmarshalers              // unmarshal only; non-boolean flag

	encoding/json/internal/jsonopts
		options.go#L170: 				if src.Flags.Has(jsonflags.Unmarshalers) {

	encoding/json/v2
		options.go#L283: 			if !src.Flags.Has(jsonflags.Unmarshalers) {
		options.go#L297: 			dst.Flags.Set(jsonflags.Unmarshalers | 1)