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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_all():
    '''
    Run all the munin plugins

    CLI Example:

    .. code-block:: bash

        salt '*' munin.run_all
    '''
    plugins = list_plugins()
    ret = {}
    for plugin in plugins:
        ret.update(run(plugin))
    return ret