code: def new_task_id(self, run_id, step_name, tags=None, sys_tags=None):
      self._task_id_seq += 1
      task_id = str(self._task_id_seq)
      self._new_task(
          run_id, step_name, task_id, tags=tags, sys_tags=sys_tags
      )
      return task_id
  
imports: import collections
  import glob
  import json
  import os
  import random
  import tempfile
  import time
  from collections import namedtuple
  from metaflow.exception import MetaflowInternalError, MetaflowTaggingError
  from metaflow.metadata.metadata import ObjectOrder
  from metaflow.metaflow_config import DATASTORE_LOCAL_DIR
  from metaflow.metadata import MetadataProvider
  from metaflow.tagging_util import MAX_USER_TAG_SET_SIZE, validate_tags
label_desc: Use image node_id 7 for calling the LocalMetadataProvider obj's underlying member method code with example usage: obj.new_task_id(run_id, step_name, tags, sys_tags) and returns: task_id