addOnUploadAttachmentListener method

dynamic addOnUploadAttachmentListener(
  1. dynamic back(
    1. WKMsg,
    2. dynamic (
      1. bool,
      2. WKMsg
      )
    )
)

Implementation

addOnUploadAttachmentListener(Function(WKMsg, Function(bool, WKMsg)) back) {
  _uploadAttachmentBack = back;
}