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-rw-r--r--src/node_id.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/node_id.rs b/src/node_id.rs
index d849310..0ee7b97 100644
--- a/src/node_id.rs
+++ b/src/node_id.rs
@@ -4,5 +4,6 @@
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
//
+/// A unique identifier for a `Node`
pub trait NodeId: Clone + Eq + PartialEq + std::hash::Hash {
}