code: def to_unfolded(self, mode):
      return ivy.Parafac2Tensor.parafac2_to_unfolded(self, mode)
  
imports: from .base import FactorizedTensor
  import ivy
  from copy import deepcopy
label_desc: Use image node_id 9 for calling the Parafac2Tensor obj's underlying member method code with example usage: obj.to_unfolded(mode) and returns: ivy