private void ConfigureForSimpleUpload(
     HttpRequestConfiguration requestConfig,
     string folderKey = null,
     MediaFireActionOnDuplicate actionOnDuplicate = MediaFireActionOnDuplicate.Keep,
     DateTime? modificationTime = null
     )
 {
     requestConfig
         .Parameter(MediaFireApiParameters.FolderKey, folderKey)
         .Parameter(MediaFireApiParameters.ActionOnDuplicate, actionOnDuplicate.ToApiParamenter())
         .Parameter(MediaFireApiParameters.ModificationTime, modificationTime);
 }