Method checkin_instance

wasm/src/lib.rs:196–202

(&self, instance_handle: InstanceHandle)

    }

    pub async fn checkin_instance(&self, instance_handle: InstanceHandle) {
        self.inner
            .write()
            .await
            .checkin_instance(instance_handle)
            .await;
    }

    pub async fn checkout_or_create_instance(&mut self) -> anyhow::Result<InstanceHandle> {
        // TODO: I don't have time to refactor this code, but I don't really like trying in a loop