public Builder mergeCounters(
          com.google.storagetransfer.v1.proto.TransferTypes.TransferCounters value) {
        if (countersBuilder_ == null) {
          if (((bitField0_ & 0x00000100) != 0)
              && counters_ != null
              && counters_
                  != com.google.storagetransfer.v1.proto.TransferTypes.TransferCounters
                      .getDefaultInstance()) {
            getCountersBuilder().mergeFrom(value);
          } else {
            counters_ = value;
          }
        } else {
          countersBuilder_.mergeFrom(value);
        }
        if (counters_ != null) {
          bitField0_ |= 0x00000100;
          onChanged();
        }
        return this;
      }
<pre>
Information about the progress of the transfer operation.
</pre>

<code>.google.storagetransfer.v1.TransferCounters counters = 7;</code>
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java