/**
 * GFM- and Obsidian-style callouts (alerts / admonitions).
 *
 * A callout is a blockquote whose first line is a type marker:
 *
 * ```
 * > [!NOTE]
 * > Body text.
 * ```
 *
 * Obsidian extends it with a fold indicator and a custom title on the marker
 * line — `> [!warning]- Collapsed by default` — where `-` starts closed and `+`
 * starts open.
 *
 * The type keyword is normalized to a small set of visual kinds here rather
 * than in each renderer, so every consumer styles the same twenty-odd aliases
 * the same way.
 *
 * @see https://docs.github.com/en/get-started/writing-on-github/getting-started-with-writing-and-formatting-on-github/basic-writing-and-formatting-syntax#alerts
 * @see https://help.obsidian.md/callouts
 */
/** The visual families a callout type can map to; each drives a colour + icon. */
export type CalloutKind = "note" | "abstract" | "info" | "todo" | "tip" | "success" | "question" | "warning" | "failure" | "danger" | "bug" | "example" | "quote";
/** Resolve a type keyword to its visual kind (defaults to `note`). */
export declare function calloutKindForType(type: string): CalloutKind;
export interface CalloutMarker {
    /** The normalized type keyword, always lowercase (e.g. `note`). */
    type: string;
    kind: CalloutKind;
    /** Author-supplied title from the marker line, when there was one. */
    title?: string;
    /** Set only when a `-`/`+` fold indicator made the callout collapsible. */
    fold?: "open" | "closed";
    /** Length of the matched marker, for slicing it off the body. */
    matchLength: number;
}
/**
 * Read a callout marker off the start of a blockquote's leading text, or null
 * when the blockquote is an ordinary quote.
 */
export declare function parseCalloutMarker(text: string): CalloutMarker | null;
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