chore: checkpoint before Python removal

vendor/russh-sftp/src/protocol/handle.rs

@@ -0,0 +1,11 @@
+use super::{impl_packet_for, impl_request_id, Packet, RequestId};
+
+/// Implementation for `SSH_FXP_HANDLE`
+#[derive(Debug, Serialize, Deserialize)]
+pub struct Handle {
+    pub id: u32,
+    pub handle: String,
+}
+
+impl_request_id!(Handle);
+impl_packet_for!(Handle);