// Please find this function
function get_facebook_object( $object_id ) {
    $url = $this->build_url_with_access_token( $object_id );
    return $this->json_retrieve( $url );
}


// Amend it as follows
function get_facebook_object( $object_id ) {
    $url = $this->build_url_with_access_token( $object_id );
    var_dump($url);
    return $this->json_retrieve( $url );
}


// Please find this function
function json_retrieve( $url ) {
    add_filter( 'http_request_timeout', array( $this, 'http_request_timeout' ) );
    return json_decode( wp_remote_retrieve_body( wp_remote_get( $url ) ) );
    remove_filter( 'http_request_timeout', array( $this, 'http_request_timeout' ) );
}


// Amend it as follows
function json_retrieve( $url ) {
    add_filter( 'http_request_timeout', array( $this, 'http_request_timeout' ) );
    $debug = json_decode( wp_remote_retrieve_body( wp_remote_get( $url ) ) );
    print_r($debug);
    return $debug;
    remove_filter( 'http_request_timeout', array( $this, 'http_request_timeout' ) );
}