def get_kern(self, font1, fontclass1, sym1, fontsize1,<EOL>font2, fontclass2, sym2, fontsize2, dpi):
return <NUM_LIT:0.><EOL>
Get the kerning distance for font between *sym1* and *sym2*.

*fontX*: one of the TeX font names::

  tt, it, rm, cal, sf, bf or default (non-math)

*fontclassX*: TODO

*symX*: a symbol in raw TeX form. e.g. '1', 'x' or '\sigma'

*fontsizeX*: the fontsize in points

*dpi*: the current dots-per-inch