Is it possible to get the type Tag of a runtime instance?

它是可能得到一个运行时实例类型标签？

youdao

Notice that when a record type is printed, it looks like a map with an extra type tag in front.

请注意在打印记录类型时，它看起来就像前面带有额外类型标签的映射。

youdao

Type in a tag and you'll receive a circle with more tags.

输入一个标签，你会得到一个含有更多标签的圆圈。

youdao

This type of tag, however, requires a buoy to carry the aerial, and this is attached to the shark by a ten-metre-long line. (The line is needed because the sharks themselves rarely break the surface, and the transmitter cannot signal to the satellite from under water.) Two American biologists, Scott Eckert and Brent Stewart, from the Hubbs-Sea World Research Institute in San Diego, have had some success with satellite tracking.

ECONOMIST: Whale sharks