code: def __repr__(self):
      message = (
          f"factors list : rank-{self.rank} TT-Matrix of tensorized shape {self.shape}"
          f" corresponding to a matrix of size {np.prod(self.left_shape)} x {np.prod(self.right_shape)}"
      )
      return message
  
imports: import tensorly
  from .tenalg import _tt_matrix_to_tensor
  from ._factorized_tensor import FactorizedTensor
  import numpy
label_desc: Use image node_id 6 for calling the TTMatrix obj's underlying member method code with example usage: obj.__repr__() and returns: message