code: def submitScreenshot(self, screenshotHandle, type_, pchSourcePreviewFilename, pchSourceVRFilename):
          
  
          fn = self.function_table.submitScreenshot
          result = fn(screenshotHandle, type_, pchSourcePreviewFilename, pchSourceVRFilename)
          return result
docs: Submit the completed screenshot.  If Steam is running
           this will call into the Steam client and upload the
           screenshot to the screenshots section of the library for
           the running application.  If Steam is not running, this
           function will display a notification to the user that the
           screenshot was taken. The paths should be full paths with
           extensions.
           File paths should be absolute including extensions.
           screenshotHandle can be k_unScreenshotHandleInvalid if this
           was a new shot taking by the app to be saved and not
           initiated by a user (achievement earned or something)