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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 render_configuration(self, configuration=None):
 """ Render variables in configuration object but don't instantiate anything """

        if configuration is None:
            configuration = self.environment

        if isinstance(configuration, dict):
            return {k: self.render_configuration(v) for k, v in configuration.items()}
        elif isinstance(configuration, list):
            return [self.render_configuration(x) for x in configuration]
        elif isinstance(configuration, Variable):
            return configuration.resolve(self.parameters)
        else:
            return configuration