使用了v-decorator绑定值，怎么使用filter

Question

使用了v-decorator绑定值，怎么使用filter

    <a-input-number
      v-else-if="record.type === 'number'"
      :style="`width:${record.options.width}`"
      :min="record.options.min"
      :max="record.options.max"
      :disabled="record.options.disabled"
      :step="record.options.step"
      :placeholder="record.options.placeholder"
      v-decorator="[
        record.model,
        {
          initialValue: record.options.defaultValue,
          rules: getRules
        }
      ]"
      @change="changeValue"
      @blur="onblur"
    />