Encode and Decode base64 strings

strings_14_base64.py

import base64


def encode_b64(input_string: str = "") -> object:
    return base64.b64encode(input_string.encode("utf-8"))


def decode_b64(input_string: str = "") -> object:
    return base64.b64decode(input_string).decode("utf-8")


assert encode_b64("Hello") == b"SGVsbG8="
assert decode_b64(b"SGVsbG8=") == "Hello"