@backend.setter<EOL><INDENT>def backend(self, backend):<DEDENT>
self._backend = backend<EOL>
Sets the backend of this ExtensionsV1beta1IngressSpec.
A default backend capable of servicing requests that don't match any rule. At least one of 'backend' or 'rules' must be specified. This field is optional to allow the loadbalancer controller or defaulting logic to specify a global default.

:param backend: The backend of this ExtensionsV1beta1IngressSpec.
:type: ExtensionsV1beta1IngressBackend