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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 custom_search(self, index, doc_type):
        '''
        Performs a search on a custom elasticsearch index and mapping. Will not attempt to map result objects.
        '''
        from bungiesearch import Bungiesearch
        return Bungiesearch(raw_results=True).index(index).doc_type(doc_type)