initial import

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

options.go

@@ -0,0 +1,20 @@
+package service
+
+import (
+	"github.com/unistack-org/micro/v3/client"
+	"github.com/unistack-org/micro/v3/config"
+)
+
+type clientKey struct{}
+
+// Client to call config service
+func Client(c client.Client) config.Option {
+	return config.SetOption(clientKey{}, c)
+}
+
+type serviceKey struct{}
+
+// Service to which data load
+func Service(s string) config.Option {
+	return config.SetOption(serviceKey{}, s)
+}