code: def next(self):
      return self.s[0]
  
imports: from __future__ import division, absolute_import, print_function
  import re
  import sys
  import platform
  from numpy.compat import unicode
  from numpy.core.overrides import set_module
  from .multiarray import dtype, array, ndarray
label_desc: Use image node_id 5 for calling the _Stream obj's underlying member method code with example usage: obj.next() and returns: self