<button
  id="{{ id }}"
  lang="{{ lang }}"
  class="custom-class van-button {{ classes }}"
  open-type="{{ openType }}"
  app-parameter="{{ appParameter }}"
  hover-stay-time="{{ hoverStayTime }}"
  hover-start-time="{{ hoverStartTime }}"
  hover-stop-propagation="{{ hoverStopPropagation }}"
  session-from="{{ sessionFrom }}"
  send-message-title="{{ sendMessageTitle }}"
  send-message-path="{{ sendMessagePath }}"
  send-message-img="{{ sendMessageImg }}"
  show-message-card="{{ showMessageCard }}"
  bind:tap="onClick"
  binderror="bindError"
  bindcontact="bindContact"
  bindopensetting="bindOpenSetting"
  bindgetuserinfo="bindGetUserInfo"
  bindgetphonenumber="bindGetPhoneNumber"
>
  <van-loading
    wx:if="{{ loading }}"
    size="20px"
    custom-class="loading-class"
    color="{{ type === 'default' ? '#c9c9c9' : '' }}"
  />
  <slot wx:else />
</button>