Prelude.Interpolation

  Interpolated strings are of the form `"xxxx \{ expr } yyyy"`.
  In this example the string `"xxxx "` is concatenated with `expr` and
  `" yyyy"`, since `expr` is not necessarily a string, the generated
  code looks like this:
  ```
  concat [interpolate "xxxx ", interpolate expr, interpolate " yyyy"]
  ```
  This allows to customise the interpolation behaviour by providing
  an instance of `Interpolation` for a type.

interpolate : a -> String

Interpolation String