Add update profile example (#120)

Author: MarshalX

examples/advanced_usage/update_profile.py

@@ -0,0 +1,40 @@
+import os
+
+from atproto import Client, models
+
+
+def main():
+    client = Client()
+    client.login(os.environ['USERNAME'], os.environ['PASSWORD'])
+
+    current_profile_record = client.com.atproto.repo.get_record(
+        models.ComAtprotoRepoGetRecord.Params(
+            collection=models.ids.AppBskyActorProfile,
+            repo=client.me.did,
+            rkey='self',
+        )
+    )
+    current_profile = current_profile_record.value
+
+    # set new values to update
+    new_description = None
+    new_display_name = 'I love Python'
+
+    client.com.atproto.repo.put_record(
+        models.ComAtprotoRepoPutRecord.Data(
+            collection=models.ids.AppBskyActorProfile,
+            repo=client.me.did,
+            rkey='self',
+            swapRecord=current_profile_record.cid,
+            record=models.AppBskyActorProfile.Main(
+                avatar=current_profile.avatar,
+                banner=current_profile.banner,
+                description=new_description or current_profile.description,
+                displayName=new_display_name or current_profile.display_name,
+            ),
+        )
+    )
+
+
+if __name__ == '__main__':
+    main()