opMixin or mixin function templates with convenience operator?

[Ola Fosheim Grøstad]

On Thursday, 12 December 2019 at 23:13:42 UTC, Paul Backus wrote:
> only available tool for the job. I would very much prefer not 
> to have that tool taken away, sharp though it may be.

Oh, I only meant it for the string-interpolation interface, not 
in general.