chore: upgrade coredns version (#550)

vendor/github.com/aws/smithy-go/middleware/context.go

@@ -0,0 +1,41 @@
+package middleware
+
+import "context"
+
+type (
+	serviceIDKey     struct{}
+	operationNameKey struct{}
+)
+
+// WithServiceID adds a service ID to the context, scoped to middleware stack
+// values.
+//
+// This API is called in the client runtime when bootstrapping an operation and
+// should not typically be used directly.
+func WithServiceID(parent context.Context, id string) context.Context {
+	return WithStackValue(parent, serviceIDKey{}, id)
+}
+
+// GetServiceID retrieves the service ID from the context. This is typically
+// the service shape's name from its Smithy model. Service clients for specific
+// systems (e.g. AWS SDK) may use an alternate designated value.
+func GetServiceID(ctx context.Context) string {
+	id, _ := GetStackValue(ctx, serviceIDKey{}).(string)
+	return id
+}
+
+// WithOperationName adds the operation name to the context, scoped to
+// middleware stack values.
+//
+// This API is called in the client runtime when bootstrapping an operation and
+// should not typically be used directly.
+func WithOperationName(parent context.Context, id string) context.Context {
+	return WithStackValue(parent, operationNameKey{}, id)
+}
+
+// GetOperationName retrieves the operation name from the context. This is
+// typically the operation shape's name from its Smithy model.
+func GetOperationName(ctx context.Context) string {
+	name, _ := GetStackValue(ctx, operationNameKey{}).(string)
+	return name
+}