/// <inheritdoc/>
 public ISpanBuilder WithTag(global::OpenTracing.Tag.StringTag tag, string value)
 {
     return(this.WithTag(tag.Key, value));
 }
 /// <inheritdoc/>
 public global::OpenTracing.ISpan SetTag(global::OpenTracing.Tag.StringTag tag, string value)
 {
     return(this.SetTag(tag?.Key, value));
 }