@Override
      public void read(org.apache.thrift.protocol.TProtocol prot, clearSlowLogResponses_args struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TTupleProtocol iprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
        java.util.BitSet incoming = iprot.readBitSet(1);
        if (incoming.get(0)) {
          {
            org.apache.thrift.protocol.TSet _set363 = iprot.readSetBegin(org.apache.thrift.protocol.TType.STRUCT);
            struct.serverNames = new java.util.HashSet<TServerName>(2*_set363.size);
            @org.apache.thrift.annotation.Nullable TServerName _elem364;
            for (int _i365 = 0; _i365 < _set363.size; ++_i365)
            {
              _elem364 = new TServerName();
              _elem364.read(iprot);
              struct.serverNames.add(_elem364);
            }
          }
          struct.setServerNamesIsSet(true);
        }
      }
Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise
hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/THBaseService.java