void setDeferredPushLen(client *c, void *node, long length) {
    serverAssert(c->resp >= 3);
    setDeferredAggregateLen(c,node,length,'>');
}
void setDeferredPushLen(client *c, void *node, long length) {
    serverAssert(c->resp >= 3);
    setDeferredAggregateLen(c,node,length,'>');
}