fix: Make examples work

examples/fetch_reports_async.py

@@ -34,18 +34,24 @@ async def fetch_reports(priv_key: str) -> int:
 
         # Step 1: construct a key object and get its location reports
         key = KeyPair.from_b64(priv_key)
-        reports = await acc.fetch_last_reports(key)
+        location = await acc.fetch_location(key)
 
-        # Step 2: print the reports!
-        for report in sorted(reports):
-            print(report)
+        # Step 2: print it!
+        print("Last known location:")
+        print(f" - {location}")
 
-            # We can save the report to a file if we want
-            report.to_json("last_report.json")
+        # Step 3 (optional): We can save the location report to a file if we want.
+        #                    BUT WATCH OUT! This file will contain the tag's private key!
+        if location is not None:
+            location.to_json("last_report.json")
+
+            # To load it later:
+            # loc = LocationReport.from_json("last_report.json")
     finally:
         await acc.close()
 
         # Make sure to save account state when you're done!
+        # Otherwise you have to log in again...
         acc.to_json(STORE_PATH)
 
     return 0