code: def isin(self, *cols):
          
          if len(cols) == 1 and isinstance(cols[0], (list, set)):
              cols = cols[0]
          cols = [c._jc if isinstance(c, Column) else _create_column_from_literal(c) for c in cols]
          sc = SparkContext._active_spark_context
          jc = getattr(self._jc, "isin")(_to_seq(sc, cols))
          return Column(jc)
docs: A boolean expression that is evaluated to true if the value of this
          expression is contained by the evaluated values of the arguments.
  
          >>> df[df.name.isin("Bob", "Mike")].collect()
          [Row(age=5, name=u'Bob')]
          >>> df[df.age.isin([1, 2, 3])].collect()
          [Row(age=2, name=u'Alice')]