code: def shiftRight(col, numBits):
      
      sc = SparkContext._active_spark_context
      jc = sc._jvm.functions.shiftRight(_to_java_column(col), numBits)
      return Column(jc)
docs: (Signed) shift the given value numBits right.
  
      >>> spark.createDataFrame([(42,)], ['a']).select(shiftRight('a', 1).alias('r')).collect()
      [Row(r=21)]