METH (bytype, "KF.bytype(TYPE) -> KEY|None")
METH (bytag, "KF.bytag(TAG) -> KEY|None")
KWMETH(qtag, "KF.qtag(TAG, new = KD) -> FULLTAG, KEY, OLDKD")
METH (bytype, "KF.bytype(TYPE) -> KEY|None")
METH (bytag, "KF.bytag(TAG) -> KEY|None")
KWMETH(qtag, "KF.qtag(TAG, new = KD) -> FULLTAG, KEY, OLDKD")