Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/aggregators/starlark/testdata/merge.star

@@ -0,0 +1,31 @@
+# Example of a merge aggregator implemented with a starlark script.
+load('time.star', 'time')
+state = {}
+def add(metric):
+    metrics = state.get("metrics")
+    if metrics == None:
+        metrics = {}
+        state["metrics"] = metrics
+        state["ordered"] = []
+    gId = groupID(metric)
+    m = metrics.get(gId)
+    if m == None:
+        m = deepcopy(metric)
+        metrics[gId] = m 
+        state["ordered"].append(m)
+    else:
+        for k, v in metric.fields.items():
+            m.fields[k] = v
+
+def push():
+    return state.get("ordered")
+
+def reset():
+    state.clear()
+
+def groupID(metric):
+    key = metric.name + "-"
+    for k, v in metric.tags.items():
+        key = key + k + "-" + v + "-"
+    key = key + "-" + str(metric.time)
+    return hash(key)