3y3 encoding in python because why not.

file.py

def encode_3y3(text: str) -> str:
    """Encodes a string using invisible 3y3 encoding."""
    return ''.join([chr((val := ord(c)) + (0xE0000 if 0x00 < val < 0x7F else 0)) for c in text])


def decode_3y3(text: str) -> str:
    """Converts all 3y3 text within the string into normal text."""
    return ''.join([chr((val := ord(c)) - (0xE0000 if 0xE0000 < val < 0xE007F else 0)) for c in text])


def has_3y3(text: str) -> bool:
    """Detects if a string contains 3y3 encoded text."""
    return any(0xE0000 < ord(c) < 0xE007F for c in text)

# License: https://unlicense.org