code: def to_unfolded(self, mode):
      return cp_to_unfolded(self, mode)
  
imports: from .None import backend
  from .base import fold, tensor_to_vec
  from ._factorized_tensor import FactorizedTensor
  from .tenalg import khatri_rao, unfolding_dot_khatri_rao
  from .metrics.factors import congruence_coefficient
  import numpy
label_desc: Use image node_id 9 for calling the CPTensor obj's underlying member method code with example usage: obj.to_unfolded(mode) and returns: cp_to_unfolded