Decode a response header from the given reader.
The header version is determined automatically from the API key and version, or can be overridden via headerVersion.
headerVersion
The reader to decode from.
API key of the originating request.
API version of the originating request.
Optional
Override the header version (defaults to auto-detection).
Decode a response header from the given reader.
The header version is determined automatically from the API key and version, or can be overridden via
headerVersion.