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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 new_resources(self, program):
 """Set new resource usage for the given program. This allows customization of memory usage for particular sub-programs of GATK like HaplotypeCaller. """

        resources = config_utils.get_resources(program, self._config)
        if resources.get("jvm_opts"):
            self._jvm_opts = resources.get("jvm_opts")