class_docstr: Method of encapsulating utility files 
class_docstr_tok: ["Method","of","encapsulating","utility","files"]
code: def mkts_from_datetime(
      self, d_time=None, milliseconds=0.0, delta=None
  ):
      d_time = datetime.now() if d_time is None else d_time
      res, _ = api_request(
          [self.ut.mkts_from_datetime, d_time, milliseconds, delta]
      )
      return res
  
imports: from datetime import datetime
  import time
  from pymilvus import utility
  import sys
  from check.func_check import ResponseChecker
  from utils.api_request import api_request
  from pymilvus import BulkInsertState
  from pymilvus.orm.role import Role
  from utils.util_log import test_log
label_desc: Use image node_id 26 for calling the ApiUtilityWrapper obj's underlying member method code with example usage: obj.mkts_from_datetime(d_time, milliseconds, delta) and returns: res