$response = Zttp::withHeaders(['Fancy' => 'Pants'])->post($url, [
  'foo' => 'bar',
  'baz' => 'qux',
]);
 
$response->json();

$client = new Client();
$response = $client->request('POST', $url, [
  'headers' => [
    'Fancy' => 'Pants',
  ],
  'form_params' => [
    'foo' => 'bar',
    'baz' => 'qux',
  ]
]);
 
json_decode($response->getBody());

$response = Zttp::asFormParams()->post($url, [
  'foo' => 'bar',
  'baz' => 'qux',
]);

$response = Zttp::patch($this->url('/patch'), [
  'foo' => 'bar',
  'baz' => 'qux',
]);

$response = Zttp::put($this->url('/put'), [
  'foo' => 'bar',
  'baz' => 'qux',
]);

$response = Zttp::delete($this->url('/delete'), [
  'foo' => 'bar',
  'baz' => 'qux',
]);

$response = Zttp::accept('banana/sandwich')->post($url);