parameters: (func_name)
docstring: Determine if the named function is a core function, or extension.
docstring_summary: Determine if the named function is a core function, or extension.
docstring_tokens: Determine if the named function is a core function or extension .
function: def IsExtensionFunc(func_name):
  	"""Determine if the named function is a core function, or extension."""
  	cat = apiutil.Category(func_name)
  	if cat == "1.0" or cat == "1.1" or cat == "1.2" or cat == "1.3":
  		return 0
  	else:
  		return 1
function_tokens: def IsExtensionFunc ( func_name ) : cat = apiutil . Category ( func_name ) if cat == "1.0" or cat == "1.1" or cat == "1.2" or cat == "1.3" : return 0 else : return 1