import { Metadata } from '../types.js';
/**
 * Rounded-corner radii of a stripped full-canvas clip, as fractions of the
 * canvas size. The raster pipeline multiplies them by the output dimensions
 * and re-applies the crop after rendering.
 */
export type CornerRadius = {
    rx: number;
    ry: number;
};
/**
 * One-pass preparation of an SVG for resvg: sets the sanitized
 * `width`/`height`, mirrors `mask-type` style declarations onto the
 * presentation attribute, and strips full-canvas clips that the bundled
 * resvg mishandles (see {@link stripFullCanvasClips}). All edits happen on
 * the same parsed tree, so each raster conversion parses and re-emits the
 * SVG exactly once. Passes are skipped when the raw string cannot contain
 * their target ("clip-path" needs no case folding: XML attribute names are
 * case-sensitive, so differently-cased occurrences would not be acted on
 * anyway).
 *
 * When a stripped clip had rounded corners, `cornerRadius` carries its radii
 * as fractions of the canvas size; the caller has to re-apply the rounded
 * crop to the rendered raster.
 */
export declare function prepareForResvg(svg: string, size?: number): {
    svg: string;
    size: number;
    cornerRadius?: CornerRadius;
};
/**
 * Brings the `mask-type` presentation attribute in line with a `style`
 * declaration of the same property.
 *
 * Both forms are valid and browsers honor either. resvg reads only the
 * attribute, and it renders every raster format this package produces. Where
 * the attribute disagrees with the declaration, or is missing while the
 * declaration says `alpha`, resvg falls back to the `luminance` default, and
 * a mask whose shape is drawn in black (luminance 0) then hides everything
 * it was meant to reveal. Figma writes the CSS form, so avatar styles
 * exported from it are affected, including official ones. See
 * {@link normalizeMaskNodes} for the precedence rules.
 *
 * Input that needs no change comes back verbatim. That includes input the
 * XML parser rejects: resvg would reject such a document anyway, so the
 * function hands it back unchanged instead of throwing. Only a mask that
 * actually needs fixing triggers a re-emit from the parsed tree, which may
 * normalize formatting details such as quote style or self-closing tags. The
 * rendered image stays the same.
 *
 * `toPng` and friends apply the same fix during their single parser pass
 * (see {@link prepareForResvg}). This standalone form is exported, and
 * documented on the converter page, for callers that drive resvg directly
 * instead of through this package, so they do not have to rediscover the
 * same limitation.
 */
export declare function normalizeMaskType(svg: string): string;
/**
 * Extracts the embedded RDF/Dublin Core metadata block from an avatar SVG
 * into a flat {@link Metadata} object. Missing fields become `undefined`.
 */
export declare function getMetadata(svg: string): Metadata;