tdlib/kotlin/-boolean/index.html"><span class="identifier">Boolean</span></a>&nbsp;<span class="symbol">=</span>&nbsp;true<span class="symbol">, </span><span class="identifier" id="com.improve_future.harmonica.core.AbstractMigration$addBooleanColumn(kotlin.String, kotlin.String, kotlin.Boolean, kotlin.Boolean, kotlin.Boolean, kotlin.String)/default">default</span><span class="symbol">:</span>&nbsp;<a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html"><span class="identifier">Bool