feat(tools): add utility to load file from URL or local path

tools/load_file.py

@@ -0,0 +1,22 @@
+import io
+from urllib.parse import urlparse
+
+import requests
+
+
+def load_file(path_or_url: str) -> io.BytesIO:
+    if _is_url(path_or_url):
+        response = requests.get(path_or_url)
+        response.raise_for_status()
+        return io.BytesIO(response.content)
+    else:
+        with open(path_or_url, 'rb') as f:
+            return io.BytesIO(f.read())
+
+
+def _is_url(path_or_url):
+    try:
+        result = urlparse(path_or_url)
+        return result.scheme in ('http', 'https')
+    except ValueError:
+        return False