@java.lang.Override
  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
    Builder builder = new Builder(parent);
    return builder;
  }
<pre>
Optional. Unreachable resources.
</pre>

<code>repeated string unreachable = 3 [(.google.api.field_behavior) = OPTIONAL];</code>

@param index The index of the value to return.
@return The bytes of the unreachable at the given index.
java-workstations/proto-google-cloud-workstations-v1beta/src/main/java/com/google/cloud/workstations/v1beta/ListWorkstationsResponse.java