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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 start(self, children):
 """ Parses a MapServer Mapfile Parsing of partial Mapfiles or lists of composites is also possible """


        composites = []

        for composite_dict in children:
            if False and self.include_position:
                key_token = composite_dict[1]
                key_name = key_token.value.lower()
                composites_position = self.get_position_dict(composite_dict)
                composites_position[key_name] = self.create_position_dict(key_token, None)

            composites.append(composite_dict)

        # only return a list when there are multiple root composites (e.g.
        # several CLASSes)
        if len(composites) == 1:
            return composites[0]
        else:
            return composites