:orphan: .. _py-placeholder-types: Internal Python Placeholder Types ================================= The objects below exist solely to satisfy cross references generated from pybind11 output. They do not correspond to concrete symbols in the public API. .. py:class:: optional Placeholder target for documents that refer to ``optional``. .. py:class:: callable Placeholder target for documents that refer to ``callable``. .. py:class:: pybind11_builtins.pybind11_object Placeholder target for documents that refer to ``pybind11_builtins.pybind11_object``.