code: def export_envs(self):
      return ["ASCEND", "HCCL", "LD_LIBRARY", "PATH"]
  
imports: import importlib
  import inspect
  from .abstract_accelerator import DeepSpeedAccelerator
label_desc: Use image node_id 63 for calling the NPU_Accelerator obj's underlying member method code with example usage: obj.export_envs() and returns: list