code: def _parse_datetime(self, value):
      for format in self._DATETIME_FORMATS:
          try:
              return datetime.datetime.strptime(value, format)
          except ValueError:
              pass
      raise Error("Unrecognized date/time format: %r" % value)
  
imports: from __future__ import absolute_import, division, print_function
  import datetime
  import numbers
  import re
  import sys
  import os
  import textwrap
  from tornado.escape import _unicode, native_str
  from tornado.log import define_logging_options
  from tornado import stack_context
  from tornado.util import basestring_type, exec_in
label_desc: Use image node_id 5 for calling the _Option obj's underlying member method code with example usage: obj._parse_datetime(value) and returns: datetime