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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 convert_ajax_data(self, field_data):
 """ Due to the way Angular organizes it model, when this Form data is sent using Ajax, then for this kind of widget, the sent data has to be converted into a format suitable for Django's Form validation. """

        data = [key for key, val in field_data.items() if val]
        return data