pub(all) struct CssMutation {
  selector : String
  property : String
  action : CssMutationAction
} derive(Eq, 
@moonbitlang/core/debug.Debug
Debug)

pub(all) enum CssMutationAction {
  Remove
  Override(String)
} derive(Eq, 
@moonbitlang/core/debug.Debug
Debug)

pub(all) struct PreparedVrtPage {
  doc : 
@mizchi/crater-dom/html.Document
Document
  viewport : 
@mizchi/css/values.Size
Size[Double]
  ctx : 
@mizchi/crater-renderer/renderer.RenderContext
RenderContext
  prepared : 
@mizchi/crater-renderer/renderer.PreparedRenderDocument
PreparedRenderDocument
}

pub(all) struct RenderVariant {
  id : String
  mutations : Array[CssMutation]
} derive(Eq, 
@moonbitlang/core/debug.Debug
Debug)

pub(all) struct RenderVariantResult {
  id : String
  paint_tree : 
@mizchi/crater-painter/paint/model.PaintNode
PaintNode
}

fn diff_rendered_paint_trees(baseline_html : String, current_html : String, viewport : 
@mizchi/css/values.Size
Size[Double]) -> 
@mizchi/crater-painter/paint/diff.PaintTreeDiff
PaintTreeDiff

fn prepare_external_css(external_css : Array[String]) -> 
@mizchi/crater-renderer/renderer.PreparedExternalCss
PreparedExternalCss

fn prepare_vrt_page(html : String, viewport : 
@mizchi/css/values.Size
Size[Double], external_css : Array[String]) -> PreparedVrtPage

fn prepare_vrt_page_with_prepared_external_css(html : String, viewport : 
@mizchi/css/values.Size
Size[Double], external_css : 
@mizchi/crater-renderer/renderer.PreparedExternalCss
PreparedExternalCss) -> PreparedVrtPage

fn render_html_batch_variants(html : String, viewport : 
@mizchi/css/values.Size
Size[Double], variants : Array[RenderVariant]) -> Array[RenderVariantResult]

fn render_html_to_paint_tree(html : String, viewport : 
@mizchi/css/values.Size
Size[Double]) -> 
@mizchi/crater-painter/paint/model.PaintNode
PaintNode

fn render_html_to_paint_tree_json(html : String, viewport : 
@mizchi/css/values.Size
Size[Double]) -> String

fn render_html_to_paint_tree_with_external_css(html : String, viewport : 
@mizchi/css/values.Size
Size[Double], external_css : Array[String]) -> 
@mizchi/crater-painter/paint/model.PaintNode
PaintNode

fn render_html_to_paint_tree_with_prepared_external_css(html : String, viewport : 
@mizchi/css/values.Size
Size[Double], external_css : 
@mizchi/crater-renderer/renderer.PreparedExternalCss
PreparedExternalCss) -> 
@mizchi/crater-painter/paint/model.PaintNode
PaintNode

fn render_prepared_vrt_page_to_paint_tree(page : PreparedVrtPage) -> 
@mizchi/crater-painter/paint/model.PaintNode
PaintNode

fn render_prepared_vrt_page_to_paint_tree_json(page : PreparedVrtPage) -> String