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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 load_environment_vars(self):
 """ Looks for any MACH9_ prefixed environment variables and applies them to the configuration if present. """

        for k, v in os.environ.items():
            if k.startswith(MACH9_PREFIX):
                _, config_key = k.split(MACH9_PREFIX, 1)
                self[config_key] = v