code: def scipy_matmul(mat1, mat2):
      if isspmatrix(mat1) and isspmatrix(mat2):
          return mat1.dot(mat2).tocoo()
      return mat1.dot(mat2)
  
file_path: pytorch/benchmarks/sparse/dlmc/matmul_bench.py
imports: import argparse
  import os
  import sys
  import torch
  import torch.utils.benchmark
  from scipy.sparse import isspmatrix
  from .utils import load_dlmc_dataset
label_desc: Use image node_id 1 for calling a global function with example usage: scipy_matmul(mat1, mat2) and returns: mat1, mat1