I just checked and the SMMA has the following attributes:
['IndType', 'ObsType', 'PriceClose', 'PriceDateTime', 'PriceHigh', 'PriceLow', 'PriceOpen', 'PriceOpenInteres', 'PriceVolume', 'StratType', '_OwnerCls', '__abs__', '__add__', '__bool__', '__call__', '__class__', '__delattr__', '__dict__', '__dir__', '__div__', '__doc__', '__eq__', '__floordiv__', '__format__', '__ge__', '__getattr__', '__getattribute__', '__getitem__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__len__', '__lt__', '__module__', '__mul__', '__ne__', '__neg__', '__new__', '__nonzero__', '__pow__', '__radd__', '__rdiv__', '__reduce__', '__reduce_ex__', '__repr__', '__rfloordiv__', '__rmul__', '__rpow__', '__rsub__', '__rtruediv__', '__setattr__', '__setitem__', '__sizeof__', '__str__', '__sub__', '__subclasshook__', '__truediv__', '__weakref__', '_addnotification', '_clk_update', '_clock', '_getline', '_lineiterators', '_ltype', '_makeoperation', '_makeoperationown', '_mindatas', '_minperiod', '_next', '_nextforce', '_notify', '_once', '_operation', '_operation_stage1', '_operation_stage2', '_operationown', '_operationown_stage1', '_operationown_stage2', '_opstage', '_owner', '_periodrecalc', '_plotinit', '_plotlabel', '_roperation', '_stage1', '_stage2', 'addindicator', 'addminperiod', 'advance', 'alias', 'aliased', 'array', 'backwards', 'bind2line', 'bind2lines', 'bindlines', 'csv', 'data', 'data0', 'data0_0', 'data_0', 'datas', 'ddatas', 'dnames', 'extend', 'forward', 'frompackages', 'getindicators', 'getindicators_lines', 'getobservers', 'home', 'incminperiod', 'l', 'line', 'line0', 'line_0', 'linealias', 'lines', 'minbuffer', 'next', 'nextstart', 'once', 'once_via_next', 'oncestart', 'oncestart_via_nextstart', 'p', 'packages', 'params', 'plotinfo', 'plotlabel', 'plotlines', 'prenext', 'preonce', 'preonce_via_prenext', 'qbuffer', 'reset', 'rewind', 'setminperiod', 'updateminperiod']
How can i give it a 'high' attribute?