/**
  * Convert an instance of {@link
  * org.apache.spark.streaming.api.java.JavaDStream}<<Tuple2<K, V>> to a {@link
  * org.apache.spark.streaming.api.java.JavaPairDStream}<K, V>.
  */
 public static <K, V> JavaPairDStream<K, V> toJavaPairDStream(JavaDStream<Tuple2<K, V>> ds) {
   return JavaAPIHelper.toJavaPairDStream(ds);
 }
 /**
  * Convert an instance of {@link org.apache.spark.api.java.JavaRDD}&lt;&lt;Tuple2&lt;K, V&gt;&gt;
  * to a {@link org.apache.spark.api.java.JavaPairRDD}&lt;K, V&gt;.
  */
 public static <K, V> JavaPairRDD<K, V> toJavaPairRDD(JavaRDD<Tuple2<K, V>> rdd) {
   return JavaAPIHelper.toJavaPairRDD(rdd);
 }