nl_tokens: FlowFile class
pl_tokens: function FlowFile ( flowObj , file , uniqueIdentifier ) { /**
       * Reference to parent Flow instance
       * @type {Flow}
       */ this . flowObj = flowObj ; /**
       * Used to store the bytes read
       * @type {Blob|string}
       */ this . bytes = null ; /**
       * Reference to file
       * @type {File}
       */ this . file = file ; /**
       * File name. Some confusion in different versions of Firefox
       * @type {string}
       */ this . name = file . fileName || file . name ; /**
       * File size
       * @type {number}
       */ this . size = file . size ; /**
       * Relative file path
       * @type {string}
       */ this . relativePath = file . relativePath || file . webkitRelativePath || this . name ; /**
       * File unique identifier
       * @type {string}
       */ this . uniqueIdentifier = ( uniqueIdentifier === undefined ? flowObj . generateUniqueIdentifier ( <mask> ) : uniqueIdentifier ) ; /**
       * List of chunks
       * @type {Array.<FlowChunk>}
       */ this . chunks = [ ] ; /**
       * Indicated if file is paused
       * @type {boolean}
       */ this . paused = false ; /**
       * Indicated if file has encountered an error
       * @type {boolean}
       */ this . error = false ; /**
       * Average upload speed
       * @type {number}
       */ this . averageSpeed = 0 ; /**
       * Current upload speed
       * @type {number}
       */ this . currentSpeed = 0 ; /**
       * Date then progress was called last time
       * @type {number}
       * @private
       */ this . _lastProgressCallback = Date . now ( ) ; /**
       * Previously uploaded file size
       * @type {number}
       * @private
       */ this . _prevUploadedSize = 0 ; /**
       * Holds previous progress
       * @type {number}
       * @private
       */ this . _prevProgress = 0 ; this . bootstrap ( ) ; }