@Override
        public <T> T getAttribute(final String id, final Class<T> clazz) {
            return getAttr(id, clazz);
        }
Internal adaptor class that delegates all its method calls to a plain {@link HttpContext}.
To be removed in the future.
httpclient5/src/main/java/org/apache/hc/client5/http/protocol/HttpClientContext.java