get sse() {
        // Return a new SSE instance if one has not been created yet
        if (this._wrapped_request.method === 'GET') {
            // Initialize the SSE instance if one has not been created yet
            if (this._sse === undefined) {
                this._sse = new SSEventStream();

                // Provide the response object to the SSE instance
                this._sse._response = this;
            }

            // Return the SSE instance
            return this._sse;
        }
    }
Returns a "Server-Sent Events" connection object to allow for SSE functionality.
This property will only be available for GET requests as per the SSE specification.

@returns {SSEventStream=}