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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 _run_proxy_processes(proxies):
    '''
    Iterate over a list of proxy
    names and restart any that
    aren't running
    '''
    ret = []
    for proxy in proxies:
        result = {}
        if not __salt__['salt_proxy.is_running'](proxy)['result']:
            __salt__['salt_proxy.configure_proxy'](proxy, start=True)
            result[proxy] = 'Proxy {0} was started'.format(proxy)
        else:
            msg = 'Proxy {0} is already running'.format(proxy)
            result[proxy] = msg
            log.debug(msg)
        ret.append(result)
    return ret