Fail to detect BNS or BBH for non-array np.float64 inputs in computeDiskMass()

Fail to detect BNS or BBH for non-array np.float64 inputs in computeDiskMass() if m1, m2, chi1, chi2 are np.float64 instead of float, type(BNS) become np.bool_ instead of bool and cannot be checked by if type(BNS) == bool: