code: def _isint(string):
      """
      >>> _isint("123")
      True
      >>> _isint("123.45")
      False
      """
      return (
          type(string) is int
          or (
              isinstance(string, _binary_type)
              or isinstance(string, _text_type)
          )
          and _isconvertible(int, string)
      )
  
imports: from __future__ import print_function
  from __future__ import unicode_literals
  from collections import namedtuple
  from platform import python_version_tuple
  import re
label_desc: Use image node_id 8 for calling a global function with example usage: _isint(string) and returns: unknown