simpleStructEchoRequest(with:completion:)
Declaration
func simpleStructEchoRequest(with params: MTRUnitTestingClusterSimpleStructEchoRequestParams, completion: @escaping @Sendable (MTRUnitTestingClusterSimpleStructResponseParams?, (any Error)?) -> Void)func simpleStructEchoRequest(with params: MTRUnitTestingClusterSimpleStructEchoRequestParams) async throws -> MTRUnitTestingClusterSimpleStructResponseParams