const google.golang.org/protobuf/internal/genid.Struct_FieldsEntry_Key_field_fullname

one use

	google.golang.org/protobuf/internal/genid (current package)
		struct_gen.go#L50: 	Struct_FieldsEntry_Key_field_fullname   protoreflect.FullName = "google.protobuf.Struct.FieldsEntry.key"