fun StringBuilder.appendln(it: String): StringBuilder

fun StringBuilder.appendln(it: Boolean): StringBuilder

fun StringBuilder.appendln(it: Byte): StringBuilder

fun StringBuilder.appendln(it: Short): StringBuilder

fun StringBuilder.appendln(it: Int): StringBuilder

fun StringBuilder.appendln(it: Long): StringBuilder

fun StringBuilder.appendln(it: Float): StringBuilder

fun StringBuilder.appendln(it: Double): StringBuilder

fun StringBuilder.appendln(it: Any?): StringBuilder

fun StringBuilder.appendln(): StringBuilder