@Deprecated
    public AbstractClientOptionsBuilder auth(OAuth1aToken token) {
        return auth((AuthToken) token);
    }
Sets the <a href="https://oauth.net/core/1.0a/">OAuth Core 1.0 Revision A</a> header
using {@link HttpHeaderNames#AUTHORIZATION}.

@deprecated Use {@link #auth(AuthToken)} instead.
core/src/main/java/com/linecorp/armeria/client/AbstractClientOptionsBuilder.java