private BoltCallback getBoltCallback(final InvokeCallback callback, final InvokeContext ctx) {
        Requires.requireNonNull(callback, "callback");
        return new BoltCallback(callback, getRejectedPolicy(ctx));
    }
Bolt rpc client impl.

@author jiachun.fjc
jraft-core/src/main/java/com/alipay/sofa/jraft/rpc/impl/BoltRpcClient.java