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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 removed(name):
    '''
    Make sure that a pecl extension is not installed.

    name
        The pecl extension name to uninstall
    '''
    ret = {'name': name, 'result': None, 'comment': '', 'changes': {}}
    if name not in __salt__['pecl.list']():
        ret['result'] = True
        ret['comment'] = 'Pecl extension {0} is not installed.'.format(name)
        return ret

    if __opts__['test']:
        ret['comment'] = ('Pecl extension {0} would have been removed'
                          .format(name))
        return ret
    if __salt__['pecl.uninstall'](name):
        ret['result'] = True
        ret['changes'][name] = 'Removed'
        ret['comment'] = ('Pecl extension {0} was successfully removed.'
                          .format(name))
    else:
        ret['result'] = False
        ret['comment'] = 'Could not remove pecl extension {0}.'.format(name)
    return ret