tustvold commented on code in PR #5188:
URL: https://github.com/apache/arrow-rs/pull/5188#discussion_r1419531943


##########
object_store/src/gcp/builder.rs:
##########
@@ -393,7 +393,7 @@ impl GoogleCloudStorageBuilder {
         self
     }
 
-    /// Set the credential provider overriding any other options
+    /// Set the credential provider overriding any other options. Default: 
[`InstanceCredentialProvider`]

Review Comment:
   This is a crate-private struct, hence why the docs aren't building cleanly.
   
   Perhaps we could instead add a comment on the builder itself that if no 
credentials are configured, it will default to using instance metadata 
credentials?



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