code: def get_empty_kernel_time(queue, timer_factory=None):
      prg = cl.Program(
          queue.context,
          """
          __kernel void empty()
          { }
          """,
      ).build()
  
      knl = prg.empty
  
      def f():
          knl(queue, (1,), None)
  
      return _get_time(queue, f, timer_factory=timer_factory)
  
imports: import pyopencl
  import numpy
label_desc: Use image node_id 5 for calling a global function with example usage: get_empty_kernel_time(queue, timer_factory) and returns: _get_time