code: def target_func(**kwargs):
      # arbitrary target func
      return sum(kwargs.values())
  
imports: import pytest
  import numpy
  from bayes_opt.constraint import ConstraintModel
  from bayes_opt.target_space import TargetSpace
  from bayes_opt.util import NotUniqueError
label_desc: Use image node_id 1 for calling a global function with example usage: target_func() and returns: sum