chore: import upstream snapshot with attribution

easygraph/functions/hypergraph/centrality/degree.py

@@ -0,0 +1,28 @@
+__all__ = ["hyepergraph_degree_centrality"]
+
+
+def hyepergraph_degree_centrality(G):
+    """
+
+    Parameters
+    ----------
+    G : eg.Hypergraph
+        The target hypergraph
+
+    Returns
+    ----------
+    degree centrality of each node in G : dict
+
+    """
+    res = {}
+    node_list = G.v
+    # Get hyperedge list
+    edge_list = G.e[0]
+    for node in node_list:
+        res[node] = 0
+
+    for e in edge_list:
+        for n in e:
+            res[n] += 1
+
+    return res