fixed v4 chages

options.go

@@ -1,6 +1,7 @@
 package http
 
 import (
+	"go.unistack.org/micro/v4/client"
 	"net"
 	"net/http"
 
@@ -30,6 +31,9 @@ type poolMaxStreams struct{}
 
 // PoolMaxStreams maximum streams on a connectioin
 func PoolMaxStreams(n int) options.Option {
+	return func(i interface{}) error {
+
+	}
 	return options.ContextOption(poolMaxStreams{}, n)
 }
 
@@ -73,8 +77,8 @@ func HTTPDialer(d *net.Dialer) options.Option {
 type methodKey struct{}
 
 // Method pass method option to client Call
-func Method(m string) options.Option {
-	return options.ContextOption(methodKey{}, m)
+func Method(m string) client.CallOptions {
+	return options.Context(methodKey{}, m)
 }
 
 type pathKey struct{}