code: def spspmm_add(
      src: SparseTensor, other: SparseTensor
  ) -> SparseTensor:
      return spspmm_sum(src, other)
  
file_path: pytorch_sparse/torch_sparse/matmul.py
imports: from typing import Optional, Tuple
  import torch
  from torch import Tensor
  from torch_sparse.tensor import SparseTensor
label_desc: Use image node_id 8 for calling a global function with example usage: spspmm_add(src, other) and returns: spspmm_sum