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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 ping(host, port=80, url=None, https=False, timeout=1, max_size=65535, sequence=0):
 """ Ping a host Parameters host: str The host or ip address to ping port: int, optional The port to ping, default=80 url: str, optional URL to ping, will do a host/port ping if not provided https: bool, optional Connect via ssl, default=False timeout: int, optional Number of seconds to wait for a response before timing out, default=1 second max_size: int, optional The max size of response that can be retrieved. This should be a power of 2 default=65535. sequence: int, optional Sequence number for the ping request Returns ------- PingResponse: The ping response object """

    try:
        result = scan(host=host, port=port, url=url, https=https, timeout=timeout, max_size=max_size)
    except ScanFailed as failure:
        result = failure.result
        result['error'] = True
        result['error_message'] = str(failure)
    result_obj = PingResponse(
        host=host, port=port, ip=result.get('ip', None), sequence=sequence,
        durations=result.get('durations', None),
        code=result.get('code', None),
        state=result.get('state', 'unknown'),
        length=result.get('length', 0),
        response=result.get('response', None),
        error=result.get('error', False),
        error_message=result.get('error_message', None),
        responding=True if result.get('state', 'unknown') in ['open'] else False,
        start=datetime.datetime.now(),
        end=datetime.datetime.now() + result['durations'].get('all', datetime.timedelta(0)) if result.get('durations', None) else None
    )
    return result_obj