PySpark rdd.randomSpit() is not documented

In the current latest version of Spark (1.2.0) If you go to the Python API, in the RDD section, there is no documentation for rdd.randomSplit(): http://spark.apache.org/docs/latest/api/python/pyspark.html#pyspark.RDD

Nevertheless, it is used as an example in the 1.2.0 documentation for mllib: http://spark.apache.org/docs/latest/mllib-ensembles.html#regression

(It's in the Python code tab, you can Ctrl+F and search for "randomSplit").

But looking in the code, it seems implemented: https://github.com/apache/spark/blob/branch-1.2/python/pyspark/rdd.py#L322