fix(upload): inst type (#5882)

Author: XiaoDaiGua-Ray

src/upload/demos/enUS/index.demo-entry.md

@@ -117,7 +117,7 @@ interface UploadCustomRequestOptions {
 | --- | --- | --- | --- |
 | clear | `() => void` | Clear current upload list. | 2.24.2 |
 | openOpenFileDialog | `() => void` | Open the file dialog window. |  |
-| submit | `(fileId?: string \| number)` | Submit all files with pending status. |  |
+| submit | `(fileId?: string)` | Submit all files with pending status. |  |
 
 ### Upload Slots
 

src/upload/demos/zhCN/index.demo-entry.md

@@ -118,7 +118,7 @@ interface UploadCustomRequestOptions {
 | --- | --- | --- | --- |
 | clear | `() => void` | 清空上传列表 | 2.24.2 |
 | openOpenFileDialog | `() => void` | 打开文件选择对话框 |  |
-| submit | `(fileId?: string \| number)` | 提交当前所有处于 pending 状态的文件 |  |
+| submit | `(fileId?: string)` | 提交当前所有处于 pending 状态的文件 |  |
 
 ### Upload Slots
 

src/upload/src/interface.ts

@@ -92,6 +92,12 @@ export interface XhrHandlers {
   handleXHRError: (e: ProgressEvent) => void
 }
 
+export interface UploadInst {
+  openOpenFileDialog: () => void
+  submit: (fileId?: string) => void
+  clear: () => void
+}
+
 export type OnBeforeUpload = (data: {
   file: UploadSettledFileInfo
   fileList: UploadSettledFileInfo[]