def METHOD_NAME(poly):
    """Apply gp.polredabs to the given polynomial and return the coefficients as a comma-separated string.
    INPUT:
        poly -- polynomial, a polynomial with coefficients in QQ
    OUTPUT:
        cs_string -- string, the coefficients of the normalized polynomial (the output of gp.polredabs(poly)), given as a comma-separated string with no spaces 
    """
    R = poly.parent()
    (x,) = R._first_ngens(1)
    poly_new = R(str(gp.polredabs(poly)))
    cs = poly_new.coefficients(sparse=False)
    cs_string = ",".join([str(el) for el in cs])
    return cs_string