import type Token from 'markdown-it/lib/token';
export declare const OPEN = "{%";
export declare const CLOSE = "%}";
export declare const IDENTIFIER_REGEX: RegExp;
export declare function isIdentifier(s: any): s is string;
export declare function isPromise(a: any): a is Promise<any>;
export declare function findTagEnd(content: string, start?: number): number | null;
export declare function parseTags(content: string, firstLine?: number): Token[];
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