assertTrue
fun List<FileDeclaration>.assertTrue(additionalMessage: String? = null, predicate: (FileDeclaration) -> Boolean)
fun KontureFileScope.assertTrue(additionalMessage: String? = null, predicate: (FileDeclaration) -> Boolean)
fun List<ClassDeclaration>.assertTrue(additionalMessage: String? = null, predicate: (ClassDeclaration) -> Boolean)
fun KontureScope.assertTrue(additionalMessage: String? = null, predicate: (ClassDeclaration) -> Boolean)