code: def __init__(self, address: str):
      self._address = address
  
file_path: mars/mars/services/subtask/api.py
imports: from ...None import oscar
  from ...lib.aio import alru_cache
  from ...oscar.backends.context import ProfilingContext
  from ...oscar.profiling import MARS_ENABLE_PROFILING
  from .core import Subtask
label_desc: Use image node_id 1 to create a new SubtaskAPI object  with example: obj = SubtaskAPI(address)