Removes the **pair** from the Kerning and returns the value as an ``int``.
        If no pair is found, **default** is returned. **pair** is a
        ``tuple`` of two :ref:`type-string`\s. This must return either

        **default** or a :ref:`type-int-float`.

            >>> font.kerning.pop(("A", "V"))
            -20
            >>> font.kerning.pop(("A", "W"))
            -10.5

def pop(self, pair, default=None):
        """
        Removes the **pair** from the Kerning and returns the value as an ``int``.
        If no pair is found, **default** is returned. **pair** is a
        ``tuple`` of two :ref:`type-string`\s. This must return either

        **default** or a :ref:`type-int-float`.

            >>> font.kerning.pop(("A", "V"))
            -20
            >>> font.kerning.pop(("A", "W"))
            -10.5
        """
        return super(BaseKerning, self).pop(pair, default)