I'm interested in adding two functions: "enable_bracketed_mode()" and "disable_bracketed_mode()" and four constants: "BRACKETED_PASTE_ENABLE_SEQ", "BRACKETED_PASTE_START_SEQ", "BRACKETED_PASTE_END_SEQ", "BRACKETED_PASTE_DISABLE_SEQ" and two Event::Key variants for "BRACKETED_PASTE_START_SEQ" and "BRACKETED_PASTE_END_SEQ". I can open a MR if this is appreciated.