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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 _get_flags(osm_obj):
 """Create element independent flags output. Args: osm_obj (Node):
 Object with OSM-style metadata Returns: list: Human readable flags output """

    flags = []
    if osm_obj.visible:
        flags.append('visible')
    if osm_obj.user:
        flags.append('user: %s' % osm_obj.user)
    if osm_obj.timestamp:
        flags.append('timestamp: %s' % osm_obj.timestamp.isoformat())
    if osm_obj.tags:
        flags.append(', '.join('%s: %s' % (k, v)
                               for k, v in sorted(osm_obj.tags.items())))
    return flags