code: def __init__(self, equation, operands):
      self.equation = equation
      self.operands = operands
  
file_path: pyro/pyro/ops/einsum/torch_marginal.py
imports: import pyro.ops.einsum.torch_log
  from pyro.ops.einsum.adjoint import Backward, transpose
  from pyro.ops.einsum.util import Tensordot
label_desc: Use image node_id 1 to create a new _EinsumBackward object from inherited base classes: Backward with example: obj = _EinsumBackward(equation, operands)