import { type DataRef, type Rule, type RuleTestResponse } from '@os-team/lexical-rules';
/**
 * Any mixture of name characters.
 * See https://www.w3.org/TR/xml/#NT-Nmtoken
 */
declare class NmtokenRule implements Rule<string> {
    private readonly rule;
    constructor();
    test(ref: DataRef, pos: number): RuleTestResponse<string>;
}
export default NmtokenRule;
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