"""DEPRECATED: Function signature objects for callables.Use the standard library version if available, as it is more up to date.Fallback on backport otherwise."""importwarningswarnings.warn("{} backport for Python 2 is deprecated in IPython 6, which only supports ""Python 3. Import directly from standard library `inspect`".format(__name__),DeprecationWarning,stacklevel=2)frominspectimportBoundArguments,Parameter,Signature,signature