I am developing Android project in Kotlin.

I got my toolbar:

```
@BindView(R.id.tool_bar)
lateinit var toolbar: Toolbar

```

I want to set its title :

```
// student.id is a int type
toolbar.title =  student.id

```

Student's id is a `Int` type. toolbar.title expects a value of type `CharSequence`. How to assign my id to toolbar's title? I mean how can I convert `student.id` to `CharSequence` so that I can assign it to my toolbar title ?