add alphafilter to dict model

Signed-off-by: xushuai <xushvai@gmail.com>
some change

Signed-off-by: xushuai <xushvai@gmail.com>
some change

Signed-off-by: xushuai <xushvai@gmail.com>
some change

Signed-off-by: xushuai <xushvai@gmail.com>