code: def drop(self, n):
          
          if n <= 0:
              return self._transform(transformations.drop_t(0))
          else:
              return self._transform(transformations.drop_t(n))
docs: Drop the first n elements of the sequence.
  
          >>> seq([1, 2, 3, 4, 5]).drop(2)
          [3, 4, 5]
  
          :param n: number of elements to drop
          :return: sequence without first n elements