code: def schedule_matmul_cublas(_, outs):
      """Schedule matmul operator using CUBLAS"""
      return generic.schedule_extern(outs)
  
file_path: tvm/python/tvm/topi/cuda/dense.py
imports: import logging
  import tvm
  from tvm import te, autotvm
  from tvm.contrib import cublas
  from .tensor_intrin import dp4a
  from ..None import tag
  from ..None import generic
  from ..utils import traverse_inline, get_const_tuple
label_desc: Use image node_id 3 for calling a global function with example usage: schedule_matmul_cublas(_, outs) and returns: generic