nl_tokens: These are just the basic requirements -- annotations can have whatever other properties the code that displays them wants them to have .
pl_tokens: <mask> ( opt_options ) { /* @type {!Array.<!Annotation>} */ this . annotations_ = [ ] ; // Used to detect resizes (which require the divs to be repositioned). this . lastWidth_ = - 1 ; this . lastHeight = - 1 ; this . dygraph_ = null ; opt_options = opt_options || { } ; this . defaultAnnotationProperties_ = $ . extend ( { 'text' : 'Description' } , opt_options [ 'defaultAnnotationProperties' ] ) ; }