Utility functions used throughout the charting framework.
  
  
 
public static function findSeriesOfType(series:ISeries, chart:IChart):Array
   Retreives every the series of the same type of the input series from the
   chart's data provider.
   
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public static function isStackingAllowed(axis:IAxis, series:ISeries):Boolean
   Determines if a series may be stacked on an axis. The series must
   implement the IStackedSeries type, the axis must implement the
   IStackingAxis type and the axis must have stackingEnabled set to
   true.
   
Parameters
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