import yoda
def patch(path, ao):
    # bin widths
    if path == "/REF/OPAL_1997_I440721/d26-x01-y01":
        for p in ao.points() :
            p.setXErrs(1)
    elif path == "/REF/OPAL_1997_I440721/d02-x01-y01":
        for p in ao.points() :
            p.setXErrs(0.5)
    return ao