def has_asymmetric_binning(hist):
    """
    Check if graph object has asymmetric x-binning
    :param hist: histogram
    :type hist: TH1
    :return: true/false on asymmetric binning
    :rtype: bool
    """
    return len(set([hist.GetBinWidth(b) for b in range(hist.GetNbinsX() + 1)])) > 1