class_docstr: Dataset with Data(H)andler
  
  User should try to put the data preprocessing functions into handler.
  Only following data processing functions should be placed in Dataset:
  
  - The processing is related to specific model.
  
  - The processing is related to data split.
class_docstr_tok: ["Dataset","with","Data","(","H",")","andler","User","should","try","to","put","the","data","preprocessing","functions","into","handler",".","Only","following","data","processing","functions","should","be","placed","in","Dataset",":","-","The","processing","is","related","to","specific","model",".","-","The","processing","is","related","to","data","split","."]
code: def get_min_time(segments):
      return DatasetH._get_extrema(segments, 0, (lambda a, b: a > b))
  
imports: from ...utils.serial import Serializable
  from typing import Callable, Union, List, Tuple, Dict, Text, Optional
  from ...utils import init_instance_by_config, np_ffill, time_to_slc_point
  from ...log import get_module_logger
  from .handler import DataHandler, DataHandlerLP
  from copy import copy, deepcopy
  from inspect import getfullargspec
  import pandas
  import numpy
  import bisect
  from ...utils import lazy_sort_index
  from .utils import get_level_index
label_desc: Use image node_id 7 for calling the DatasetH obj's underlying member method code with example usage: obj.get_min_time(segments) and returns: DatasetH