@SuppressWarnings("WeakerAccess")
  public CreateInstanceRequest addLabel(@Nonnull String key, @Nonnull String value) {
    Preconditions.checkNotNull(key, "Key can't be null");
    Preconditions.checkNotNull(value, "Value can't be null");
    builder.getInstanceBuilder().putLabels(key, value);
    return this;
  }
@ SuppressWarnings ( "WeakerAccess" ) public CreateInstanceRequest addLabel ( @ Nonnull String key , @ Nonnull String value ) { Preconditions . checkNotNull ( key , "Key can't be null" ) ; Preconditions . checkNotNull ( value , "Value can't be null" ) ; builder . getInstanceBuilder ( ) . putLabels ( key , value ) ; return this ; }
Adds an arbitrary label to the instance.

<p>Labels are key-value pairs that you can use to group related instances and store metadata
about an instance.

@see <a href="https://cloud.google.com/bigtable/docs/creating-managing-labels">For more
details</a>