Map<String, Graph> getGraphCache(boolean includeUserDefined, boolean includeAutoGenerated) {
    return getCache(userGraphCache, autoGraphCache, includeUserDefined, includeAutoGenerated);
  }
Map < String , Graph > getGraphCache ( boolean includeUserDefined , boolean includeAutoGenerated ) { return getCache ( userGraphCache , autoGraphCache , includeUserDefined , includeAutoGenerated ) ; }
Returns a cache containing a mapping from variables to graphs.

@param includeUserDefined include user-defined variables
@param includeAutoGenerated include auto-generated variables

@return immutable graph cache