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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_arguments(self, action_node):
 """ Returns a dictionary of arguments for the given action_node. """

        arguments = {}
        argument_nodes = action_node.iterfind(
            r'./ns:argumentList/ns:argument', namespaces={'ns': self.namespace})
        for argument_node in argument_nodes:
            argument = self._get_argument(argument_node)
            arguments[argument.name] = argument
        return arguments