@java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (type_
            != com.google.devtools.cloudtrace.v2.Span.TimeEvent.MessageEvent.Type.TYPE_UNSPECIFIED
                .getNumber()) {
          size += com.google.protobuf.CodedOutputStream.computeEnumSize(1, type_);
        }
        if (id_ != 0L) {
          size += com.google.protobuf.CodedOutputStream.computeInt64Size(2, id_);
        }
        if (uncompressedSizeBytes_ != 0L) {
          size += com.google.protobuf.CodedOutputStream.computeInt64Size(3, uncompressedSizeBytes_);
        }
        if (compressedSizeBytes_ != 0L) {
          size += com.google.protobuf.CodedOutputStream.computeInt64Size(4, compressedSizeBytes_);
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }
<pre>
The number of compressed bytes sent or received. If missing, the
compressed size is assumed to be the same size as the uncompressed
size.
</pre>

<code>int64 compressed_size_bytes = 4;</code>

@return The compressedSizeBytes.
java-trace/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/Span.java