This converter only accepts integer values::
Rule("/page/<int:page>")
By default it only accepts unsigned, positive values. The ``signed``
parameter will enable signed, negative values. ::
Rule("/page/<int(signed=True):page>")
:param map: The :class:`Map`.
:param fixed_digits: The number of fixed digits in the URL. If you
set this to ``4`` for example, the rule will only match if the
URL looks like ``/0001/``. The default is variable length.
:param min: The minimal value.
:param max: The maximal value.
:param signed: Allow signed (negative) values.
.. versionadded:: 0.15
The ``signed`` parameter.