package org.jetbrains.dokka.pages import org.jetbrains.dokka.model.properties.ExtraProperty class SimpleAttr(val extraKey: String, val extraValue: String) : ExtraProperty<ContentNode> { data class SimpleAttrKey(val key: String) : ExtraProperty.Key<ContentNode, SimpleAttr> override val key: ExtraProperty.Key<ContentNode, SimpleAttr> = SimpleAttrKey(extraKey) companion object { fun header(value: String) = SimpleAttr("data-togglable", value) } }