code: def __matmul__(self, other):
      from ._ops import matmul
  
      return matmul(self, other)
  
imports: import functools
  import torch
  from fate.arch.trace import auto_trace
label_desc: Use image node_id 22 for calling the PHETensor obj's underlying member method code with example usage: obj.__matmul__(other) and returns: matmul