public static Builder newBuilder(
        com.google.storagetransfer.v1.proto.TransferTypes.S3CompatibleMetadata prototype) {
      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
    }
<pre>
The Listing API to use for discovering objects. When not specified,
Transfer Service will attempt to determine the right API to use.
</pre>

<code>.google.storagetransfer.v1.S3CompatibleMetadata.ListApi list_api = 4;</code>

@return The listApi.
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java