pub fn server_mod_attribute<P: AsRef<str>, A: AsRef<str>>(
        mut self,
        path: P,
        attribute: A,
    ) -> Self {
        self.server_attributes
            .push_mod(path.as_ref().to_string(), attribute.as_ref().to_string());
        self
    }
Add additional attribute to matched server `mod`s. Matches on the package name.
tonic-build/src/prost.rs