[service_desk] Request type fields method addition

Added a method to get field composition of a request type

Author: clmoreno

atlassian/service_desk.py

@@ -182,6 +182,26 @@ def get_request_type(self, service_desk_id, request_type_id):
             f"rest/servicedeskapi/servicedesk/{service_desk_id}/requesttype/{request_type_id}",
             headers=self.experimental_headers,
         )
+
+    def get_request_type_fields(self, service_desk_id, request_type_id):
+        """
+        Retrieve the fields for a specific request type in a service desk.
+
+        :param service_desk_id: The ID of the service desk for which the request type
+            fields are to be retrieved.
+        :type service_desk_id: str
+        :param request_type_id: The ID of the request type within the specified service
+            desk.
+        :type request_type_id: str
+        :return: A response object containing the fields information for the specified
+            request type.
+        :rtype: requests.Response
+        """
+
+        return self.get(
+            f"rest/servicedeskapi/servicedesk/{service_desk_id}/requesttype/{request_type_id}/field",
+            headers=self.experimental_headers,
+        )
 
     # Participants actions
     def get_request_participants(self, issue_id_or_key, start=0, limit=50):