private void buildPartialRepeatedFields(
          com.google.devtools.cloudtrace.v2.StackTrace.StackFrames result) {
        if (frameBuilder_ == null) {
          if (((bitField0_ & 0x00000001) != 0)) {
            frame_ = java.util.Collections.unmodifiableList(frame_);
            bitField0_ = (bitField0_ & ~0x00000001);
          }
          result.frame_ = frame_;
        } else {
          result.frame_ = frameBuilder_.build();
        }
      }
<pre>
A collection of stack frames, which can be truncated.
</pre>

Protobuf type {@code google.devtools.cloudtrace.v2.StackTrace.StackFrames}
java-trace/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/StackTrace.java