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# : out example
# : dep cryptography
import sys
from typing import List
from cryptography.fernet import Fernet
def cryptic_hello(name: str) -> str:
"Example taken from `cryptography` docs."
key = Fernet.generate_key()
f = Fernet(key)
token = f.encrypt(hello(name).encode("utf-8"))
ret = f.decrypt(token).decode("utf-8")
assert ret == hello(name)
return ret
def hello(name: str) -> str:
return f"Hello {name}"
def main() -> None:
if "test" in sys.argv:
print("testing success")
print(cryptic_hello("world"))
if __name__ == "__main__":
main()
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