code: def return_kernel_hyperparams_as_str(kernel_hyperparams):
      """Returns the kernel hyper-params as a string."""
      if "scale" in kernel_hyperparams:
          scale_str = "scale=%0.5f" % (kernel_hyperparams["scale"])
      else:
          scale_str = "alphas=%s" % (
              get_list_of_floats_as_str(kernel_hyperparams["alphas"], 5)
          )
      betas_str = "betas=" + str(kernel_hyperparams["betas"])
      return scale_str + ", " + betas_str
  
imports: import numpy
  import unittest
  from .syn_nn_functions import syn_func1_common, cnn_syn_func1, mlp_syn_func1
  from .nn_examples import generate_cnn_architectures, generate_mlp_architectures
  from .None import nn_gp
  from ..utils.ancillary_utils import get_list_of_floats_as_str
  from ..utils.base_test_class import BaseTestClass, execute_tests
  from ..utils.option_handler import load_options
label_desc: Use image node_id 6 for calling a global function with example usage: return_kernel_hyperparams_as_str(kernel_hyperparams) and returns: unknown