Each source file should start with a header defining, for instance, ownership of the file, license, functional description, etc.
module fly; endmodule
// This confidential and proprietary software may be used only as authorized // by a licensing agreement from Linty Services. // (c) Copyright 2016-2022 Linty Services // ALL RIGHTS RESERVED // The entire notice above must be reproduced on all authorized copies. module fly; endmodule