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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 smart_open(uri, mode="rb", **kw):
 """Deprecated, use smart_open.open instead."""

    logger.warning('this function is deprecated, use smart_open.open instead')

    #
    # The new function uses a shorter name for this parameter, handle it separately.
    #
    ignore_extension = kw.pop('ignore_extension', False)

    expected_kwargs = _inspect_kwargs(open)
    scrubbed_kwargs = {}
    transport_params = {}

    #
    # Handle renamed keyword arguments.  This is required to maintain backward
    # compatibility.  See test_smart_open_old.py for tests.
    #
    if 'host' in kw or 's3_upload' in kw:
        transport_params['multipart_upload_kwargs'] = {}
        transport_params['resource_kwargs'] = {}

    if 'host' in kw:
        url = kw.pop('host')
        if not url.startswith('http'):
            url = 'http://' + url
        transport_params['resource_kwargs'].update(endpoint_url=url)

    if 's3_upload' in kw and kw['s3_upload']:
        transport_params['multipart_upload_kwargs'].update(**kw.pop('s3_upload'))

    #
    # Providing the entire Session object as opposed to just the profile name
    # is more flexible and powerful, and thus preferable in the case of
    # conflict.
    #
    if 'profile_name' in kw and 's3_session' in kw:
        logger.error('profile_name and s3_session are mutually exclusive, ignoring the former')

    if 'profile_name' in kw:
        transport_params['session'] = boto3.Session(profile_name=kw.pop('profile_name'))

    if 's3_session' in kw:
        transport_params['session'] = kw.pop('s3_session')

    for key, value in kw.items():
        if key in expected_kwargs:
            scrubbed_kwargs[key] = value
        else:
            #
            # Assume that anything not explicitly supported by the new function
            # is a transport layer keyword argument.  This is safe, because if
            # the argument ends up being unsupported in the transport layer,
            # it will only cause a logging warning, not a crash.
            #
            transport_params[key] = value

    return open(uri, mode, ignore_ext=ignore_extension, transport_params=transport_params, **scrubbed_kwargs)