code: def get_trial_id() -> str:
      """
      Return unique ID of the trial that is current running.
  
      This is shown as "ID" in the web portal's trial table.
      """
      return _trial_id
  
file_path: nni/nni/trial.py
imports: from __future__ import annotations
  from typing import Any, cast
  from .runtime.env_vars import trial_env_vars
  from .runtime.trial_command_channel import get_default_trial_command_channel
  from .typehint import Parameters, TrialMetric, ParameterRecord
label_desc: Use image node_id 5 for calling a global function with example usage: get_trial_id() and returns: _trial_id