chore: import upstream snapshot with attribution

tests/fixtures/sample_map_dispatch.py

@@ -0,0 +1,47 @@
+# Fixture for testing REFERENCES edge extraction in Python map dispatch patterns.
+
+
+def handle_create(data):
+    print("create", data)
+
+
+def handle_update(data):
+    print("update", data)
+
+
+def handle_delete(data):
+    print("delete", data)
+
+
+def validate_input(data):
+    return data is not None
+
+
+def process_data(data):
+    return data
+
+
+def format_output(data):
+    return str(data)
+
+
+# Pattern 1: Dict with function values
+handlers = {
+    "create": handle_create,
+    "update": handle_update,
+    "delete": handle_delete,
+}
+
+# Pattern 2: List of function references (pipeline)
+pipeline = [validate_input, process_data, format_output]
+
+
+# Pattern 3: Assignment to dict key
+dynamic_handlers = {}
+dynamic_handlers["format"] = format_output
+
+
+def dispatch(action):
+    handler = handlers.get(action)
+    if handler:
+        handler({})