Attribute Macro remove_gen_stub

#[remove_gen_stub]

Do nothing but remove all #[gen_stub(xxx)] for pyclass, pymethods, and pyfunction.

It is useful to use #[gen_stub(xxx)] under feature-gating stub-gen.

E.g., only generate .pyi when stub-gen feature is turned-on:

#[cfg_attr(feature = "stub-gen", pyo3_stub_gen_derive::gen_stub_pymethods)]
#[cfg_attr(not(feature = "stub-gen"), pyo3_stub_gen_derive::remove_gen_stub)]
#[pymethods]
impl A {
    #[gen_stub(override_return_type(type_repr="typing_extensions.Self", imports=("typing_extensions")))]
    #[new]
    pub fn new() -> Self {
        Self::default()
    }
}
#[cfg(feature = "stub-gen")]
define_stub_info_gatherer!(stub_info);

With Cargo.toml:

[features]
stub-gen = ["dep:pyo3-stub-gen"]
[dependencies]
pyo3-stub-gen = {version = "*", optional = true}
pyo3-stub-gen-derive = "*"