code: def to_vec(self):
      return tucker_to_vec(self)
  
imports: from ._factorized_tensor import FactorizedTensor
  from .base import unfold, tensor_to_vec
  from .tenalg import multi_mode_dot, mode_dot
  from .None import backend
  import numpy
  from scipy.optimize import brentq
  import warnings
label_desc: Use image node_id 10 for calling the TuckerTensor obj's underlying member method code with example usage: obj.to_vec() and returns: tucker_to_vec