Module rasterize 

SVG / PNG helpers for Adaptive Cards fallbacks. SVG builders + optional PNG rasterize for Adaptive Cards Image data URIs.

Used for chart / canvas / gauge nodes that Adaptive Cards cannot express natively.

Functions

element_to_png_data_uri

Convenience: element → PNG data URI.

element_to_svg

Build an SVG document for chart/canvas/gauge/shape; None for other element types.

svg_to_data_uri

Rasterize SVG to data:image/png;base64,… when the rasterize feature is on.