@java.lang.Override
      public Builder clone() {
        return super.clone();
      }
<pre>
Represents a single stack frame in a stack trace.
</pre>

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