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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_evaluation_parameter(self, parameter_name, default_value=None):
 """Get an evaluation parameter value that has been stored in meta. Args: parameter_name (string):
 The name of the parameter to store. default_value (any):
 The default value to be returned if the parameter is not found. Returns: The current value of the evaluation parameter. """

        if "evaluation_parameters" in self._expectations_config and \
                parameter_name in self._expectations_config['evaluation_parameters']:
            return self._expectations_config['evaluation_parameters'][parameter_name]
        else:
            return default_value