chore: import upstream snapshot with attribution

docs/snippets/all/tutorials/fixed_window_plot.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+"""A live plot of a random walk using a scrolling fixed window size."""
+
+from __future__ import annotations
+
+import time
+
+import numpy as np
+
+import rerun as rr  # pip install rerun-sdk
+import rerun.blueprint as rrb
+
+rr.init("rerun_example_fixed_window_plot", spawn=True)
+
+rr.send_blueprint(
+    rrb.TimeSeriesView(
+        origin="random_walk",
+        time_ranges=rrb.VisibleTimeRange(
+            "time",
+            start=rrb.TimeRangeBoundary.cursor_relative(seconds=-5.0),
+            end=rrb.TimeRangeBoundary.cursor_relative(),
+        ),
+    ),
+)
+
+cur_time = time.time()
+value = 0.0
+
+while True:
+    cur_time += 0.01
+    sleep_for = cur_time - time.time()
+    if sleep_for > 0:
+        time.sleep(sleep_for)
+
+    value += np.random.normal()
+
+    rr.set_time("time", timestamp=cur_time)
+
+    rr.log("random_walk", rr.Scalars(value))