Merge branch 'master' into dev

src/docs/usage.md

@@ -467,8 +467,8 @@ RDS-S3 resources can be directly accessed via an S3-client. Direct connections r
 
 ```python
 # Keys with write privileges, substitute for key_read for read-only privileges
-access_key: str = resource.s3.access_key_write
-secret_key: str = resource.s3.secret_key_write
+access_key: str = resource.s3.write_access_key
+secret_key: str = resource.s3.write_secret_key
 endpoint: str = resource.s3.endpoint
 bucket: str = resource.s3.bucket
 ```