Constant Py_TPFLAGS_DISALLOW_INSTANTIATION
pub const Py_TPFLAGS_DISALLOW_INSTANTIATION: u32 = _; // 128u32Available on crate feature
tls and Py_3_10 only.pub const Py_TPFLAGS_DISALLOW_INSTANTIATION: u32 = _; // 128u32tls and Py_3_10 only.