code: def to_vec(self):
      return ivy.Parafac2Tensor.parafac2_to_vec(self)
  
imports: from .base import FactorizedTensor
  import ivy
  from copy import deepcopy
label_desc: Use image node_id 8 for calling the Parafac2Tensor obj's underlying member method code with example usage: obj.to_vec() and returns: ivy