I am calling this from within an Application Context.
So "/" should be my App directory.
Two problems:
1) I get a server error reposponse:
{"error_summary": "path/malformed_path", "error": {".tag": "path", "path": {".tag": "malformed_path"}}}
2) When I get this error ... The Swift api fails to deserialize "malformed_path"
Called from Files.GetMetadataErrorSerializer:deserialize when it tries to deserialize the "path"