Sample handler:
```go
    handler :=  func(ctx context.Context, payload []byte, in <-chan []byte, out chan<- []byte) *RemoteErr {
        fmt.Println("Got request with initial payload", p, "from", GetCaller(ctx context.Context))
        fmt.Println("Subroute:", GetSubroute(ctx))
        for {
            select {
            case <-ctx.Done():
                return nil
            case req, ok := <-in:

)

func Cmd(ctx cli.Context) *cobra.Command {
	cmd := &cobra.Command{
		Use:   "metrics <workload name>...",
		Short: "Prints the metrics for the specified workload(s) when running in Kubernetes.",
		Long: `
Prints the metrics for the specified service(s) when running in Kubernetes.

This command finds a Prometheus pod running in the specified istio system

          .url("https://www.google.ca/")
          .build(),
      )
    val response = call.execute()
    try {
      println(response.code)
      println("PROTOCOL ${response.protocol}")
      var line: String?
      while (response.body.source().readUtf8Line().also { line = it } != null) {
        println(line)
      }
    } finally {
      response.body.close()
    }
    client.connectionPool.evictAll()
  }

                    res.addEdge(sourceV, newV, edge);
                }
            }
            // System.err.println("Original graph("+graph.getVertices().size()+"):\n"+graph.toString());
            // System.err.println("Cleaned("+requestedScope+") graph("+res.getVertices().size()+"):\n"+res.toString());
            // System.err.println("Linked("+requestedScope+")
            // subgraph("+linkedRes.getVertices().size()+"):\n"+linkedRes.toString());

            if (response.request.header("Authorization") != null) {
              return null // Give up, we've already attempted to authenticate.
            }

            println("Authenticating for response: $response")
            println("Challenges: ${response.challenges()}")
            val credential = Credentials.basic("jesse", "password1")
            return response.request.newBuilder()

        ClassTraversalUtil.forEach(con.getJarFile(), (ClassHandler) (packageName, shortClassName) -> {
            if (count < 10) {
                System.out.println(ClassUtil.concatName(packageName, shortClassName));
            }
            assertThat(packageName, is(notNullValue()));
            assertThat(shortClassName, is(notNullValue()));
            assertThat(packageName,

	buf.Write([]byte{0, 24})
	buf.WriteString("application/octet-stream")

	buf.WriteByte(11)
	buf.WriteString(":event-type")
	buf.WriteByte(7)
	buf.Write([]byte{0, 7})
	buf.WriteString("Records")

	fmt.Println(buf.Bytes())
}

// Continuation Message
// ====================
// Header specification
// --------------------
// Continuation messages contain two headers, as follows:

        if (done) {
          System.out.println("completed");
        } else {
          if (firstUpdate) {
            firstUpdate = false;
            if (contentLength == -1) {
              System.out.println("content-length: unknown");
            } else {
              System.out.format("content-length: %d\n", contentLength);
            }
          }

          System.out.println(bytesRead);

        final String s = MessageFormatter.getMessage("EMSG0000");
        System.out.println(s);
        assertThat(s, is("[EMSG0000]test"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testGetMessageWithArgs() throws Exception {
        final String s = MessageFormatter.getMessage("EMSG0001", "hoge");
        System.out.println(s);
        assertThat(s, is("[EMSG0001]hogeが見つかりません"));
    }

    /**

      if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

      System.out.println("Server: " + response.header("Server"));
      System.out.println("Date: " + response.header("Date"));
      System.out.println("Vary: " + response.headers("Vary"));
    }
  }

  public static void main(String... args) throws Exception {
    new AccessHeaders().run();
  }