public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    return com.google.devtools.cloudtrace.v2.TraceProto
        .internal_static_google_devtools_cloudtrace_v2_AttributeValue_descriptor;
  }
<pre>
The allowed types for `[VALUE]` in a `[KEY]:[VALUE]` attribute.
</pre>

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