otp.Operation.str.upper# upper()# Converts a string to upper case. Returns Uppercased string Return type Operation Examples >>> data = otp.Ticks(X=['HeLlO', 'wOrLd!']) >>> data["LENS"] = data["X"].str.upper() >>> otp.run(data)["LENS"] 0 HELLO 1 WORLD! Name: LENS, dtype: object