diff -r afb7f3a4981a -r d37c1a5d09ce src/lib/GenericASN1ContentHandler.h
--- a/src/lib/GenericASN1ContentHandler.h	Sat Jun 12 20:43:07 2021 +0200
+++ b/src/lib/GenericASN1ContentHandler.h	Sat Jun 12 21:29:18 2021 +0200
@@ -41,15 +41,29 @@
 	virtual ~GenericASN1ContentHandler() {
 	}
 
-	void abc() override {
-		handlers.writeComment("abc");
-	};
+	void writeCollectionStart(CollectionType type) override {
+		handlers.writeComment("collection start");
+	}
+
+	void writeCollectionEnd() override {
+		handlers.writeComment("collection end");
+	}
+
+	void writeBoolean(bool value) override {
+		handlers.writeComment("boolean");
+	}
 
-	void def(int a) override {
-	};
+	void writeNull() override {
+		handlers.writeComment("null");
+	}
 
-	void ghi(int a, int b) override {
-	};
+	void writeInteger(int64_t value) override {
+		handlers.writeComment("integer");
+	}
+
+	void writeString(StringType type, std::string value) override {
+		handlers.writeComment("string");
+	}
 
 };