abe76e6068e385381b7288b5df0958f438b489d1,src/main/java/org/telegram/api/objects/Chat.java,Chat,serializeWithType,#JsonGenerator#SerializerProvider#TypeSerializer#,100

Before Change


    public void serializeWithType(JsonGenerator gen, SerializerProvider serializers, TypeSerializer typeSer) throws IOException {
        gen.writeStartObject();
        gen.writeNumberField(ID_FIELD, id);
        if (id > 0) {
            gen.writeStringField(FIRSTNAME_FIELD, firstName);
            gen.writeStringField(LASTNAME_FIELD, lastName);
            gen.writeStringField(USERNAME_FIELD, userName);
        } else {
            gen.writeStringField(TITLE_FIELD, title);

After Change


            if (firstName != null) {
                gen.writeStringField(FIRSTNAME_FIELD, firstName);
            }
            if (lastName != null) {
                gen.writeStringField(LASTNAME_FIELD, lastName);
            }
        } else {
            if (title != null) {