(glib:define-gboxed-opaque font-description "PangoFontDescription"
  :export t
  :type-initializer "pango_font_description_get_type"
  :alloc (%font-description-new))  

The pango:font-description structure represents the description of an ideal font. It is opaque, and has no user visible fields. These structures are used both to list what fonts are available on the system and also for specifying the characteristics of a font to load.