         .fail @__uploadDf.reject
       .fail @__uploadDf.reject
 
-    __multipartStart: ->
+    multipartStart: ->
       data =
         UPLOADCARE_PUB_KEY: @settings.publicKey
         filename: @fileName

            data: blob
      $.when.apply(null, requests)

    __multipartComplete: (uuid) ->
      data =
        UPLOADCARE_PUB_KEY: @settings.publicKey
        uuid: uuid

              utils.commonWarning('autostore')
            @__uploadDf.reject()

    multipartUpload: ->
      @multipartStart().done (data) =>
        @uploadParts(data.parts).done =>
          @multipartComplete(data.uuid).done (data) =>
            @fileId = data.uuid
            @__handleFileData(data)
            @__completeUpload()
