fix scalastyle

Author: brkyvz

mllib/src/main/scala/org/apache/spark/ml/param/params.scala

@@ -220,7 +220,11 @@ class BooleanParam(parent: Params, name: String, doc: String) // No need for isV
 }
 
 /** Specialized version of [[Param[Array[T]]]] for Java. */
-class ArrayParam[T : ClassTag](parent: Params, name: String, doc: String, isValid: Array[T] => Boolean)
+class ArrayParam[T : ClassTag](
+    parent: Params,
+    name: String,
+    doc: String,
+    isValid: Array[T] => Boolean)
   extends Param[Array[T]](parent, name, doc, isValid) {
 
   def this(parent: Params, name: String, doc: String) =

python/pyspark/ml/feature.py

@@ -21,7 +21,7 @@
 from pyspark.ml.wrapper import JavaTransformer
 from pyspark.mllib.common import inherit_doc
 
-__all__ = ['Tokenizer', 'HashingTF']
+__all__ = ['Tokenizer', 'HashingTF', 'VectorAssembler']
 
 
 @inherit_doc