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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 renew_secret(client, creds, opt):
 """Renews a secret. This will occur unless the user has specified on the command line that it is not neccesary"""

    if opt.reuse_token:
        return

    seconds = grok_seconds(opt.lease)
    if not seconds:
        raise aomi.exceptions.AomiCommand("invalid lease %s" % opt.lease)

    renew = None
    if client.version:
        v_bits = client.version.split('.')
        if int(v_bits[0]) == 0 and \
           int(v_bits[1]) <= 8 and \
           int(v_bits[2]) <= 0:
            r_obj = {
                'increment': seconds
            }
            r_path = "v1/sys/renew/{0}".format(creds['lease_id'])
            # Pending discussion on https://github.com/ianunruh/hvac/issues/148
            # pylint: disable=protected-access
            renew = client._post(r_path, json=r_obj).json()

    if not renew:
        renew = client.renew_secret(creds['lease_id'], seconds)

    # sometimes it takes a bit for vault to respond
    # if we are within 5s then we are fine
    if not renew or (seconds - renew['lease_duration'] >= 5):
        client.revoke_self_token()
        e_msg = 'Unable to renew with desired lease'
        raise aomi.exceptions.VaultConstraint(e_msg)