code: def matmul(x, y):
      if x.size(-1) == 1:
          return x.mul(y)
      return x.matmul(y)
  
imports: import math
  import torch
  from torch.fft import irfft, rfft
  from ..None import settings
label_desc: Use image node_id 17 for calling a global function with example usage: matmul(x, y) and returns: x, x