You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: raft_test.go
    path of file: ./repos/vault/vault/external_tests/raft/raft_binary
    
    the code of the file until where you have to start completion: // Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: BUSL-1.1

package raft_binary

import (
	"bytes"
	"context"
	"fmt"
	"io"
	"os"
	"strings"
	"testing"
	"time"

	"github.com/hashicorp/go-secure-std
    
func removeRaftNode(t *testing.T, node *docker.DockerClusterNode, client *api.Client, serverID string) {
	t.Helper()
	_, err := client.Logical().Write("sys/storage/raft/remove-peer", map[string]interface{}{
		"server_id": serverID,
	})
	if err != nil {
		t.Fatal(err)
	}
	// clean up the cluster nodes. Note that the node is not removed from the ClusterNodes
	node.Cleanup()
}