Amazon Gift Card on Demand Incentives stand alone class

src/Amazon/Client/ClientInterface.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Amazon\Client;
+
+interface ClientInterface
+{
+	/**
+	 * @param string       $url     The URL being requested, including domain and protocol
+	 * @param array        $headers Headers to be used in the request
+	 * @param array|string $params  Can be nested for arrays and hashes
+	 *
+	 * @return String
+	 */
+
+	public function request(string $url, array $headers, $params): string;
+}
+
+// __END__