I have the following code that fails with the error shown below. How can I get more explicit than I already am ?

interface Tooltipable : FlowContent {
    fun Tag.withTooltip(block: FlowContent.() -> Unit)
    fun Tag.tooltipBox(content: FlowContent.() -> Unit) {
        (this@tooltipBox).withTooltip{
            div(classes = "tooltip-box",block = content)
        }
    }
}

Error:(11, 9) Kotlin: 'fun Tag.withTooltip(block: FlowContent.() -> Unit): Unit' can't be called in this context by implicit receiver. Use the explicit one if necessary

Do you need the this@tooltipBox if you use it with with with statement?