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: handlers.go
    path of file: ./repos/coder/cli/clitest
    
    the code of the file until where you have to start completion: package clitest

import (
	"testing"

	"github.com/coder/coder/v2/cli/clibase"
)

// HandlersOK asserts that all commands have a handler.
// Without a handler, the command has
    
func HandlersOK(t *testing.T, cmd *clibase.Cmd) {
	cmd.Walk(func(cmd *clibase.Cmd) {
		if cmd.Handler == nil {
			// If you see this error, make the Handler a helper invoker.
			//   Handler: func(inv *clibase.Invocation) error {
			//	   return inv.Command.HelpHandler(inv)
			//	 },
			t.Errorf("command %q has no handler, change to a helper invoker using: 'inv.Command.HelpHandler(inv)'", cmd.Name())
		}
	})
}