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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 encrypt_key(key, password):
 """Encrypt the password with the public key and return an ASCII representation. The public key retrieved from the Travis API is loaded as an RSAPublicKey object using Cryptography's default backend. Then the given password is encrypted with the encrypt() method of RSAPublicKey. The encrypted password is then encoded to base64 and decoded into ASCII in order to convert the bytes object into a string object. Parameters key: str Travis CI public RSA key that requires deserialization password: str the password to be encrypted Returns ------- encrypted_password: str the base64 encoded encrypted password decoded as ASCII Notes ----- Travis CI uses the PKCS1v15 padding scheme. While PKCS1v15 is secure, it is outdated and should be replaced with OAEP. Example: OAEP(mgf=MGF1(algorithm=SHA256()), algorithm=SHA256(), label=None)) """

    public_key = load_pem_public_key(key.encode(), default_backend())
    encrypted_password = public_key.encrypt(password, PKCS1v15())
    return base64.b64encode(encrypted_password).decode('ascii')