access token via oauth when using
TLS for connection to the backend.</p><table class=message-fields><thead><tr><th>Field</th><th>Type</th><th>Description</th></tr></thead><tbody><tr id=OAuth-client_id><td><code>clientId</code></td><td><code>string</code></td><td><p>REQUIRED. OAuth client id for mixer.</p></td></tr><tr id=OAuth-client_secret><td><code>clientSecret</code></td><td><code>string</code></td><td><p>REQUIRED. The path to the file holding the client secret for oauth.</p></td></tr><tr id=OAuth-token_