MNT: Add CI mode to examples

Author: mtsokol

ci/test_examples.sh

@@ -1,3 +1,3 @@
 for example in $(find ./examples/ -iname *.py); do
-  python $example
+  CI_MODE=True python $example
 done

examples/utils.py

@@ -1,9 +1,16 @@
+import os
 import time
 from collections.abc import Callable, Iterable
 from typing import Any
 
+CI_MODE = os.getenv("CI_MODE", default=False)
+
 
 def benchmark(func: Callable, args: Iterable[Any], info: str, iters: int):
+    if CI_MODE:
+        print("CI mode - skipping benchmark")
+        return
+
     print(info)
     start = time.time()
     for _ in range(iters):