Issue #29 Added describeLead rest end point to the library

src/Client.php

@@ -84,6 +84,20 @@ public static function factory($config = array())
         return $client;
     }
 
+    /**
+     * This API will return all fields and the data type of a lead object.
+     * Note: This API returns API field names for both Marketo REST and SOAP APIs.
+     * 
+     * @param array $args - No required parameters
+     * 
+     * @link http://developers.marketo.com/documentation/rest/describe/
+     * 
+     * @return array
+     */
+    public function describeLead($args = array()) {
+        return $this->getResult('describeLead', $args);
+    }
+
     /**
      * Import Leads via file upload
      *

src/service.json

@@ -3,6 +3,10 @@
     "apiVersion": "1",
     "description": "Service description used for talking to the Marketo.com REST API.",
     "operations": {
+        "describeLead": {
+            "httpMethod": "GET",
+            "uri": "leads/describe.json" 
+        },
         "importLeadsCsv": {
             "httpMethod": "POST",
             "uri": "leads.json",