[ONOS-4831] Implement op param class for apps

Change-Id: I88aee8a3009de84649c959e21ce83e3bbbf63c18
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/JavaImportData.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/JavaImportData.java
index e9eafbf..0e19b23 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/JavaImportData.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/JavaImportData.java
@@ -32,6 +32,7 @@
 import static org.onosproject.yangutils.utils.UtilConstants.IMPORT;
 import static org.onosproject.yangutils.utils.UtilConstants.JAVA_LANG;
 import static org.onosproject.yangutils.utils.UtilConstants.JAVA_UTIL_OBJECTS_IMPORT_CLASS;
+import static org.onosproject.yangutils.utils.UtilConstants.BITSET;
 import static org.onosproject.yangutils.utils.UtilConstants.JAVA_UTIL_OBJECTS_IMPORT_PKG;
 import static org.onosproject.yangutils.utils.UtilConstants.LIST;
 import static org.onosproject.yangutils.utils.UtilConstants.LISTENER_REG;
@@ -209,6 +210,15 @@
     }
 
     /**
+     * Returns import for to bitset method.
+     *
+     * @return import for to bitset method
+     */
+    public String getImportForToBitSet() {
+        return IMPORT + JAVA_UTIL_OBJECTS_IMPORT_PKG + PERIOD + BITSET + SEMI_COLAN + NEW_LINE;
+    }
+
+    /**
      * Returns import for list attribute.
      *
      * @return import for list attribute