Constant Py_TPFLAGS_IS_ABSTRACT
pub const Py_TPFLAGS_IS_ABSTRACT: u64 = _; // 1_048_576u64Available on crate features
dep_pyo3 and std only.pub const Py_TPFLAGS_IS_ABSTRACT: u64 = _; // 1_048_576u64dep_pyo3 and std only.