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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 values(self, *fields):
 """ Ask the collection to return a list of dict of given fields for each instance found in the collection. If no fields are given, all "simple value" fields are used. """

        if not fields:
            fields = self._get_simple_fields()

        fields = self._coerce_fields_parameters(fields)

        self._instances = False
        self._values = {'fields': fields, 'mode': 'dicts'}
        return self