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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 _aix_loadavg():
    '''
    Return the load average on AIX
    '''
    #  03:42PM   up 9 days,  20:41,  2 users,  load average: 0.28, 0.47, 0.69
    uptime = __salt__['cmd.run']('uptime')
    ldavg = uptime.split('load average')
    load_avg = ldavg[1].split()
    return {'1-min': load_avg[1].strip(','),
            '5-min': load_avg[2].strip(','),
            '15-min': load_avg[3]}