code: def get_sample_task(n=128):
      """return a sample task for testing"""
      target = tvm.target.Target("llvm")
      task = autotvm.task.create(
          "testing/matmul", args=(n, n, n, "float32"), target=target
      )
      return task, target
  
file_path: tvm/python/tvm/testing/autotvm.py
imports: import time
  import numpy
  import tvm
  from tvm import te
  from tvm import autotvm
  from tvm.autotvm import MeasureInput, MeasureResult
  from tvm.autotvm.measure.measure import Runner
label_desc: Use image node_id 3 for calling a global function with example usage: get_sample_task(n) and returns: task,  target