code: def __call__(self, element, test_elements):
      self.dtype = np.dtype(bool)
      return self.new_tensor(
          [element, test_elements],
          shape=element.shape,
          order=TensorOrder.C_ORDER,
      )
  
file_path: mars/mars/tensor/base/isin.py
imports: from typing import Union
  import numpy
  from ...None import opcodes
  from ...serialization.serializables import BoolField
  from ...typing import TileableType
  from ..operands import TensorOperand, TensorOperandMixin
  from ..datasource import tensor
  from ..array_utils import as_same_device, device
  from ..core import TensorOrder
label_desc: Use image node_id 1 for calling the TensorIsIn obj's underlying member method code with example usage: obj.__call__(element, test_elements) and returns: self