code: def __call__(self, a):
      a = astensor(a)
      return self.new_tensor([a], a.shape, order=TensorOrder.C_ORDER)
  
file_path: mars/mars/tensor/linalg/inv.py
imports: import numpy
  from numpy.linalg import LinAlgError
  from ...None import opcodes
  from ...core import recursive_tile
  from ...serialization.serializables import KeyField
  from ..array_utils import as_same_device, device
  from ..datasource import tensor
  from ..operands import TensorHasInput, TensorOperandMixin
  from ..core import TensorOrder
label_desc: Use image node_id 1 for calling the TensorInv obj's underlying member method code with example usage: obj.__call__(a) and returns: self