class_docstr: A wrapper class for the PARAFAC2 decomposition.
code: def __iter__(self):
      yield self.weights
      yield self.factors
      yield self.projections
  
imports: from .None import backend
  from .base import unfold, tensor_to_vec
  from ._factorized_tensor import FactorizedTensor
label_desc: Use image node_id 4 for calling the Parafac2Tensor obj's underlying member method code with example usage: obj.__iter__() without return types