Method register

tools/python-3.11.9-amd64/Lib/argparse.py:1395–1397

(self, registry_name, value, object)

    # Registration methods
    # ====================
    def register(self, registry_name, value, object):
        registry = self._registries.setdefault(registry_name, {})
        registry[value] = object

    def _registry_get(self, registry_name, value, default=None):
        return self._registries[registry_name].get(value, default)