code: def to_attribute(name, attr_string):
      attr_classes = (
          NominalAttribute,
          NumericAttribute,
          DateAttribute,
          StringAttribute,
          RelationalAttribute,
      )
  
      for cls in attr_classes:
          attr = cls.parse_attribute(name, attr_string)
          if attr is not None:
              return attr
  
      raise ParseArffError("unknown attribute %s" % attr_string)
  
imports: import re
  import datetime
  import numpy
  import csv
  import ctypes
label_desc: Use image node_id 1 for calling a global function with example usage: to_attribute(name, attr_string) and returns: attr