[EGetParamResult](API\Plugins\AnimNext\Param\FParamStack\EGetParamResult) GetMutableParamData ( [FParamId](API\Plugins\AnimNext\Param\FParamId) InId, [FParamTypeHandle](API\Plugins\AnimNext\Param\FParamTypeHandle) InTypeHandle, [TArrayView](API\Runtime\Core\Containers\TArrayView)< uint8 > & OutParamData )