code: def timeit(fxn):
      st = time.perf_counter()
      et = fxn()
      ret = (
          time.perf_counter() - st
      )  # NOTE: et doesn't contain the launch overhead
      # print(f"{ret*1e6:.2f} us")
      return et
  
imports: import time
  import numpy
  from tinygrad import dtypes
  from tinygrad.helpers import getenv, prod, flat_mv
  from tinygrad.runtime.ops_hip import HIPAllocator, HIPProgram, compile_hip
label_desc: Use image node_id 1 for calling a global function with example usage: timeit(fxn) and returns: et