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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 excute_query(query, db=None, flags=None, use_sudo=False, **kwargs):
 """Execute remote psql query."""


    flags = flags or u''
    if db:
        flags = u"%s -d %s" % (flags, db)
    command = u'psql %s -c "%s"' % (flags, query)
    if use_sudo:
        sudo(command, user='postgres', **kwargs)
    else:
        run(command, **kwargs)