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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 make_rsa_keypair(bits):
 """Generate an RSA keypair. Args: bits (int):
 number of bits to use for the key. Returns: (private_key, public_key) - both as PEM encoded strings """

    private_key = rsa.generate_private_key(
        public_exponent=65537,
        key_size=bits,
        backend=default_backend(),
    )
    private_pem = private_key.private_bytes(
        encoding=serialization.Encoding.PEM,
        format=serialization.PrivateFormat.TraditionalOpenSSL,
        encryption_algorithm=serialization.NoEncryption(),
    )
    public_pem = private_key.public_key().public_bytes(
        encoding=serialization.Encoding.PEM,
        format=serialization.PublicFormat.SubjectPublicKeyInfo,
    )
    return private_pem, public_pem