code: def segment_file_str(self):
      return "{} {} {:.3f} {:.3f}".format(
          self.utt_id(),
          self.path.recording_id(),
          self.time_begin,
          self.time_end,
      )
  
imports: import argparse
  import os
  import re
  import sys
  from collections import namedtuple
  import yaml
label_desc: Use image node_id 2 for calling the JKACLabel obj's underlying member method code with example usage: obj.segment_file_str() and returns: str