private <PREQ, PRESP> CompletableFuture<Void> procedureCall(TableName tableName, PREQ preq,
    MasterRpcCall<PRESP, PREQ> rpcCall, Converter<Long, PRESP> respConverter,
    ProcedureBiConsumer consumer) {
    return procedureCall(b -> b.priority(tableName), preq, rpcCall, respConverter, consumer);
  }
The implementation of AsyncAdmin.
<p>
The word 'Raw' means that this is a low level class. The returned {@link CompletableFuture} will
be finished inside the rpc framework thread, which means that the callbacks registered to the
{@link CompletableFuture} will also be executed inside the rpc framework thread. So users who use
this class should not try to do time consuming tasks in the callbacks.
@since 2.0.0
@see AsyncHBaseAdmin
@see AsyncConnection#getAdmin()
@see AsyncConnection#getAdminBuilder()
hbase-client/src/main/java/org/apache/hadoop/hbase/client/RawAsyncHBaseAdmin.java