toColumn

inline fun <reified T> Iterable<T>.toColumn(name: String = "", infer: Infer = Infer.Nulls): DataColumn<T>

inline fun <reified T> Iterable<T>.~~toColumn~~(property: KProperty<T>): DataColumn<T>

It's recommended to migrate to the String or Extension Properties Access API https://kotlin.github.io/dataframe/apilevels.html