v-model receives selected files. Use before-select-method for app rules and upload-method for a custom request adapter. Existing action upload still works.
<template><s-uploadv-model="files"multipleauto-submitmode="image":limit-count="3":limit-size="2":file-types="['image/png', 'image/jpeg']"show-tiptip-text="PNG/JPG only, up to 2 MB each.":before-select-method="beforeSelect":upload-method="uploadMethod"/></template>