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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 resolve_parameter_refs(self, input_dict, parameters):
 """ Resolves references that are present in the parameters and returns the value. If it is not in parameters, this method simply returns the input unchanged. :param input_dict: Dictionary representing the Ref function. Must contain only one key and it should be "Ref". Ex: {Ref: "foo"} :param parameters: Dictionary of parameter values for resolution :return: """

        if not self.can_handle(input_dict):
            return input_dict

        param_name = input_dict[self.intrinsic_name]

        if not isinstance(param_name, string_types):
            return input_dict

        if param_name in parameters:
            return parameters[param_name]
        else:
            return input_dict