--- title: testCallString description: Test request. Returns back received string --- ## Method: testCallString [Back to methods index](index.md) YOU CANNOT USE THIS METHOD IN MADELINEPROTO Test request. Returns back received string ### Parameters: | Name | Type | Required | Description | |----------|---------------|----------|-------------| |x|[CLICK ME string](../types/string.md) | Yes|String to return| ### Return type: [TestString](../types/TestString.md)