code: def get(self, pair, default=None):
          
          return super(BaseKerning, self).get(pair, default)
docs: Returns the value for the kerning pair.
          **pair** is a ``tuple`` of two :ref:`type-string`\s, and the returned
          values will either be :ref:`type-int-float` or ``None``
          if no pair was found. ::
  
              >>> font.kerning[("A", "V")]
              -25
  
          It is important to understand that any changes to the returned value
          will not be reflected in the Kerning object. If one wants to make a change to
          the value, one should do the following::
  
              >>> value = font.kerning[("A", "V")]
              >>> value += 10
              >>> font.kerning[("A", "V")] = value