alt:
<img tal:replace="context/foo_mini" />


neu:
<img tal:replace="context/@@image-scaling/foo" />
<img tal:replace="context/@@image-scaling/foo/mini" />


<img tal:define="scale context/@@image-scaling"
     tal:replace="python: scale.scale('image', width=64, height=64, quality=95).tag()" />
<img tal:define="scale context/@@image-scaling"
     tal:replace="python: scale.scale('image', name='mini').tag()" />