code: def t(self) -> Tensor:  # Only support accessing its transpose:
      from torch_geometric.utils import to_torch_csr_tensor
  
      size = self.size
      return to_torch_csr_tensor(
          self.edge_index.flip([0]),
          self.edge_attr,
          size[::-1] if isinstance(size, (tuple, list)) else size,
      )
  
file_path: pytorch_geometric/torch_geometric/typing.py
imports: import inspect
  import os
  import sys
  import warnings
  from typing import Any, Dict, List, Optional, Tuple, Union
  import numpy
  import torch
  from torch import Tensor
label_desc: Use image node_id 2 for calling the MockTorchCSCTensor obj's underlying member method code with example usage: obj.t() and returns: to_torch_csr_tensor