Transform Ascii art diagram like this:
' , /---------+ +---------+ | | | ASCII +---->| Diagram | +---------+ | | | | +--+------/ ---*-----/<=======/ '
Into this:
<<data:image/png;base64,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>>
See the documentation of the Text.AsciiDiagram module for the description of the input format.