code: def loadInternalSheet(klass, p, **kwargs):
      'Load internal sheet of given klass.  Internal sheets are always tsv.'
      vs = klass(p.name, source=p, **kwargs)
      options._set('encoding', 'utf8', vs)
      if p.exists():
          vd.sheets.insert(0, vs)
          vs.reload.__wrapped__(vs)
          vd.sheets.pop(0)
      return vf loadInternalSheet(klass, p, **kwargs):
      'Load internal sheet of given klass.  Internal sheets are always tsv.'
      vs = klass(p.name, source=p, **kwargs)
      options._set('encoding', 'utf8', vs)
      if p.exists():
          vd.sheets.insert(0, vs)
          vs.reload.__wrapped__(vs)
          vd.sheets.pop(0)
      return vs
docs: Load internal sheet of given klass.  Internal sheets are always tsv.