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  | def recurs_flatten(lista): | |
| result = [] | |
| for item in lista: | |
| if type(item) == type([]): | |
| result.extend(recurs_flatten(item)) | |
| else: | |
| result.append(item) | |
| return result | |
| # TESTS | 
  
    
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  | class Product(): | |
| def __init__(self,name,continent,country,city): | |
| self._name=name | |
| self._continent=continent | |
| self._country=country | |
| self._city=city | |
| def get_location(self): | |
| return [self._continent,self._country,self._city] |