code: def tr_to_unfolded(factors, mode):
      return ivy.unfold(TRTensor.tr_to_tensor(factors), mode)
  
imports: from .base import FactorizedTensor
  import ivy
  import warnings
label_desc: Use image node_id 13 for calling the TRTensor obj's underlying member method code with example usage: obj.tr_to_unfolded(factors, mode) and returns: ivy