code: def skip_backends(backends):
      """Function wrapper to specify which backends should skip the test.
  
      Args:
          backends: The list of backends to skip.
  
      Returns:
          A function wrapping the input function.
      """
      backends = set(utils.listify(backends))
  
      def decorator(func):
          @six.wraps(func)
          def wrapper(*args, **kwargs):
              if K.backend() in backends:
                  return
              func(*args, **kwargs)
  
          return wrapper
  
      return decorator
  
imports: from __future__ import absolute_import
  import six
  import tensorflow
  from keras import backend
  from .None import utils
label_desc: Use image node_id 2 for calling a global function with example usage: skip_backends(backends) and returns: decorator, wrapper