@staticmethod
    def set_warning(
            parameter,
            message):
        if not parameter.hasWarning():
            parameter.setWarningMessage(message)
Concatenates all the observable sequences. This takes in either an
dataset/ETHPy150Open Esri/solutions-geoprocessing-toolbox/suitability/toolboxes/scripts/MultidimensionSupplementalTools/MultidimensionSupplementalTools/Scripts/mds/tools/tool.py/Tool.set_warning--crossover with--dataset/ETHPy150Open ReactiveX/RxPY/rx/linq/observable/concat.py/concat