How to increase the cost of advertising in Google Adwords over time using PHP?

Question

How to increase the cost of advertising in Google Adwords over time using PHP?

So, I have successfully established a connection with Google Adwords, but I don’t understand what the request should look like in order to cost ads over time. What parameters should be used? I was hoping to find a simpler solution, like api calls made in Google Analytics:

   public function getAudienceMetricsAll($google_analytics_account_id)
    {
        $curl = new Curl("https://www.googleapis.com/analytics/v3/data/ga");
        $curl->setParams([
            "ids"         => "ga:" . $google_analytics_account_id,
            "dimensions"  => "ga:date",
            "metrics"     => "ga:users,ga:newUsers,ga:percentNewSessions,ga:sessions,ga:bounces,ga:bounceRate,ga:avgSessionDuration,ga:goalStartsAll,ga:pageviews,ga:pageViewsPerSession",
            "start-date"  => "730daysAgo",
            "end-date"    => "today",
            "max-results" => 10000
        ]);
        $curl->setHeaders([
            "Authorization" => "Bearer " . @$this->aim_account->settings["credentials"]["access_token"]
        ]);

        $data = $curl->sendRequest("json");

        return $data;
    }