What data type in Go is used to represent Unicode characters?

In Go, the rune type is used to represent Unicode characters. It is an alias for int32, which stores the Unicode code point. For example:

var ch rune = 'Я' // Unicode character
fmt.Printf("%c %U\n", ch, ch) // Outputs: Я U+042F

The byte type (alias for uint8) is typically used for bytes, while rune is used for Unicode characters.