SRU::Response::Explain - A class for representing SRU explain responses

    use SRU::Response;
    my $response = SRU::Response::Explain->new( $request );

The constructor which requires that you pass in a SRU::Request::Explain object.

Add a SRU::Response::Diagnostic object to the response.

Returns an array ref of SRU::Response::Diagnostic objects relevant for the response.