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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_validator(name):
 """ Load the JSON Schema Draft 4 validator with the given name from the local schema directory. """

    with open(os.path.join(SCHEMA_PATH, name)) as fh:
        schema = json.load(fh)
    Draft4Validator.check_schema(schema)
    return Draft4Validator(schema, format_checker=checker)