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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def decrypt(key, ciphertext):
 """Decrypt Simple Substitution enciphered ``ciphertext`` using ``key``. Example: HELLO Args: key (iterable):
 The key to use ciphertext (str):
 The text to decrypt Returns: Decrypted ciphertext """

    # TODO: Is it worth keeping this here I should I only accept strings?
    key = ''.join(key)
    alphabet = string.ascii_letters
    cipher_alphabet = key.lower() + key.upper()
    return ciphertext.translate(str.maketrans(cipher_alphabet, alphabet))