code: public final TagContextBuilder putLocal(TagKey key, TagValue value) {
      return put(key, value, METADATA_NO_PROPAGATION);
    }
docs: Adds a non-propagating tag to this {@code TagContextBuilder}.
  
  <p>This is equivalent to calling {@code put(key, value,
  TagMetadata.create(TagTtl.NO_PROPAGATION))}.
  
  @param key the {@code TagKey} which will be set.
  @param value the {@code TagValue} to set for the given key.
  @return this
  @since 0.21