# tag
Tag a plain map with a type name, making it a typed instance.
## Syntax
[tag $map $type-name]
## Examples
[tag %{ x 10 y 20 } "Point"] # %Point{ x 10 y 20 }
[type [tag %{ x 1 } "Point"]] # "Point"
## Returns
Tagged map.
## See Also
`untag`, `type`, `deftype`