code: def equal_nan(self):
      return self._equal_nan
  
file_path: mars/mars/tensor/arithmetic/isclose.py
imports: import numpy
  from ...None import opcodes
  from ...serialization.serializables import Float64Field, BoolField
  from ..array_utils import device, as_same_device
  from .core import TensorBinOp
label_desc: Use image node_id 4 for calling the TensorIsclose obj's underlying member method code with example usage: obj.equal_nan() and returns: self