headerCell

fun Row.headerCell(    content: String? = null,     rich: Boolean = false,     align: <Error class: unknown class>? = null,     scope: Scope? = null,     className: String? = null,     init: HeaderCell.() -> Unit? = null): HeaderCell
fun Table.headerCell(    content: String? = null,     rich: Boolean = false,     align: <Error class: unknown class>? = null,     scope: Scope? = null,     className: String? = null,     init: HeaderCell.() -> Unit? = null): HeaderCell

DSL builder extension function.

It takes the same parameters as the constructor of the built component.