-import java.io.File;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.io.StringWriter;
-import java.io.Writer;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.regex.Pattern;
-
+import com.google.common.annotations.VisibleForTesting;
+import freemarker.template.Configuration;
+import freemarker.template.Template;