export declare const MENTION_DIRECTIVE_NAME = "mention";
export declare const MENTION_NODE_NAME = "mention";
export type MentionAttrs = {
    type: string;
    id: string;
    label: string;
    extra: Record<string, string>;
};
type DirectiveLike = {
    name?: string;
    attributes?: Record<string, string | null | undefined> | null;
    children?: unknown[];
};
/** Collects mention label text from mdast phrasing children, unescaping directive escapes. */
export declare function phrasingToLabel(children: unknown[] | undefined): string;
/** Reverses `\\` and `\\]` escapes in a mention directive label. */
export declare function unescapeMentionLabel(label: string): string;
/** Escapes `\\` and `]` so a label is safe inside `:mention[...]`. */
export declare function escapeMentionLabel(label: string): string;
/** Directive attributes other than `type` and `id` (e.g. `playbookId`). Drops keys/values that cannot live in `{...}`. */
export declare function extraAttrsFromRecord(attributes: Record<string, unknown> | null | undefined): Record<string, string>;
/** True when the node is a `:mention` directive with `type`, `id`, and at least one ref attr. */
export declare function isValidMentionDirective(node: DirectiveLike): boolean;
/** Parses a valid mention directive into normalized attrs, or null if invalid. */
export declare function readMentionAttrs(node: DirectiveLike): MentionAttrs | null;
/** Merges `type`, `id`, and `extra` into one attribute map for markdown serialization. */
export declare function flattenMentionAttrs(attrs: MentionAttrs): Record<string, string>;
/** Normalizes ProseMirror mention node attrs (including legacy flat ref keys) into `MentionAttrs`. */
export declare function mentionAttrsFromNode(attrs: Record<string, unknown>): MentionAttrs;
/** Serializes attrs to a `:mention[label]{...}` text directive, or null if attrs fail the gate. */
export declare function formatMentionDirective(attrs: MentionAttrs): string | null;
export {};