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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 get_min(self, field=None):
 """ Create a min aggregation object and add it to the aggregation dict :param field: the field present in the index that is to be aggregated :returns: self, which allows the method to be chainable with the other methods """


        if not field:
            raise AttributeError("Please provide field to apply aggregation to!")
        agg = A("min", field=field)
        self.aggregations['min_' + field] = agg
        return self