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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 crl_managed(name,
                signing_private_key,
                signing_private_key_passphrase=None,
                signing_cert=None,
                revoked=None,
                days_valid=100,
                digest="",
                days_remaining=30,
                include_expired=False,
                **kwargs):
    '''
    Manage a Certificate Revocation List

    name
        Path to the certificate

    signing_private_key
        The private key that will be used to sign this crl. This is
        usually your CA's private key.

    signing_private_key_passphrase
        Passphrase to decrypt the private key.

    signing_cert
        The certificate of the authority that will be used to sign this crl.
        This is usually your CA's certificate.

    revoked
        A list of certificates to revoke. Must include either a serial number or a
        the certificate itself. Can optionally include the revocation date and
        notAfter date from the certificate. See example below for details.

    days_valid : 100
        The number of days the certificate should be valid for.

    digest
        The digest to use for signing the CRL. This has no effect on versions
        of pyOpenSSL less than 0.14.

    days_remaining : 30
        The crl should be automatically recreated if there are less than
        ``days_remaining`` days until the crl expires. Set to 0 to disable
        automatic renewal.

    include_expired : False
        If ``True``, include expired certificates in the CRL.

    kwargs
        Any arguments supported by :py:func:`file.managed <salt.states.file.managed>` are supported.

    Example:

    .. code-block:: yaml

        /etc/pki/ca.crl:
          x509.crl_managed:
            - signing_private_key: /etc/pki/myca.key
            - signing_cert: /etc/pki/myca.crt
            - revoked:
              - compromized_Web_key:
                - certificate: /etc/pki/certs/badweb.crt
                - revocation_date: 2015-03-01 00:00:00
                - reason: keyCompromise
              - terminated_vpn_user:
                - serial_number: D6:D2:DC:D8:4D:5C:C0:F4
                - not_after: 2016-01-01 00:00:00
                - revocation_date: 2015-02-25 00:00:00
                - reason: cessationOfOperation
    '''
    if revoked is None:
        revoked = []

    revoked = _revoked_to_list(revoked)

    current_days_remaining = 0
    current_comp = {}

    if os.path.isfile(name):
        try:
            current = __salt__['x509.read_crl'](crl=name)
            current_comp = current.copy()
            current_comp.pop('Last Update')
            current_notafter = current_comp.pop('Next Update')
            current_days_remaining = (
                datetime.datetime.strptime(current_notafter, '%Y-%m-%d %H:%M:%S') -
                datetime.datetime.now()).days
            if days_remaining == 0:
                days_remaining = current_days_remaining - 1
        except salt.exceptions.SaltInvocationError:
            current = '{0} is not a valid CRL.'.format(name)
    else:
        current = '{0} does not exist.'.format(name)

    new_crl = __salt__['x509.create_crl'](text=True, signing_private_key=signing_private_key,
                                          signing_private_key_passphrase=signing_private_key_passphrase,
                                          signing_cert=signing_cert, revoked=revoked, days_valid=days_valid,
                                          digest=digest, include_expired=include_expired)

    new = __salt__['x509.read_crl'](crl=new_crl)
    new_comp = new.copy()
    new_comp.pop('Last Update')
    new_comp.pop('Next Update')

    file_args, kwargs = _get_file_args(name, **kwargs)
    new_crl_created = False
    if (current_comp == new_comp and
            current_days_remaining > days_remaining and
            __salt__['x509.verify_crl'](name, signing_cert)):
        file_args['contents'] = __salt__[
            'x509.get_pem_entry'](name, pem_type='X509 CRL')
    else:
        new_crl_created = True
        file_args['contents'] = new_crl

    ret = __states__['file.managed'](**file_args)
    if new_crl_created:
        ret['changes'] = {'Old': current, 'New': __salt__[
            'x509.read_crl'](crl=new_crl)}
    return ret