code: def execute_function(function_request):
      
      dispatch_table = getattr(settings, 'BEANSTALK_DISPATCH_TABLE', None)
  
      if dispatch_table is None:
          raise BeanstalkDispatchError('No beanstalk dispatch table configured')
      for key in (FUNCTION, ARGS, KWARGS):
          if key not in function_request.keys():
              raise BeanstalkDispatchError(
                  'Please provide a {} argument'.format(key))
  
      function_path = dispatch_table.get(
          function_request[FUNCTION], ''
      )
  
      if function_path:
          runnable = locate(function_path)
          if not runnable:
              raise BeanstalkDispatchError(
                  'Unable to locate function: {}'.format(function_path))
  
          args = function_request[ARGS]
          kwargs = function_request[KWARGS]
          if inspect.isclass(runnable):
              if issubclass(runnable, SafeTask):
                  task = runnable()
              else:
                  raise BeanstalkDispatchError(
                      'Requested task is not a SafeTask subclass: {}'.format(
                          function_request[FUNCTION]))
          else:
              task = SafeTask()
              task.run = runnable
          task.process(*args, **kwargs)
      else:
          raise BeanstalkDispatchError(
              'Requested function not found: {}'.format(
                  function_request[FUNCTION]))
docs: Given a request created by
      `beanstalk_dispatch.common.create_request_body`, executes the
      request.  This function is to be run on a beanstalk worker.