debug.traceback
Returns a string with a traceback of the call stack. The optional message string is appended at the beginning of the traceback.
traceback([thread,] [message: any [, level: any(1)]]) -> message: anyReturns a string with a traceback of the call stack. The optional message string is appended at the beginning of the traceback.
traceback([thread,] [message: any [, level: any(1)]]) -> message: any