URI:
  HTML DoubleFlatMapFunction.html
  HTML DoubleFunction.html
  HTML FlatMapFunction.html
  HTML FlatMapFunction2.html
  HTML Function.html
  HTML Function0.html
  HTML Function2.html
  HTML Function3.html
  HTML PairFlatMapFunction.html
  HTML PairFunction.html
  HTML VoidFunction.html
  HTML package-frame.html
  HTML package-summary.html
  HTML package-tree.html