code: def __init__(self, xmin=0.0, xmax=0.0, text=""):
      self.xmin = xmin
      self.xmax = xmax
      self.text = text
  
      if self.xmax < self.xmin:
          raise ValueError(
              "xmax ({}) < xmin ({})".format(self.xmax, self.xmin)
          )
  
imports: import argparse
  import codecs
  import glob
  import os
  import sys
  from multiprocessing import Pool
label_desc: Use image node_id 1 to create a new Interval object from inherited base classes: object with example: obj = Interval(xmin, xmax, text)