// Here, both input and local var have the param `client`, so the second one will shadow the first one
    fn revoke_consent_sessions(&self, subject: &str, client: Option<&str>, all: Option<bool>) -> Result<(), Error> {
        let configuration: &configuration::Configuration = self.configuration.borrow();
        // Maybe something like `localVarClient` is better
        // It would be better if conflict detection can be provided by the generator?
        let client = &configuration.client;

        let uri_str = format!("{}/oauth2/auth/sessions/consent", configuration.base_path);
        let mut req_builder = client.delete(uri_str.as_str());

        req_builder = req_builder.query(&[("subject", &subject.to_string())]);

        // Wrong `client`
        if let Some(ref s) = client {
            req_builder = req_builder.query(&[("client", &s.to_string())]);
        }
        if let Some(ref s) = all {
            req_builder = req_builder.query(&[("all", &s.to_string())]);
        }
        if let Some(ref user_agent) = configuration.user_agent {
            req_builder = req_builder.header(reqwest::header::USER_AGENT, user_agent.clone());
        }

        // send request
        let req = req_builder.build()?;

        client.execute(req)?.error_for_status()?;
        Ok(())
    }