export declare function isOAuthScopeToken(value: unknown): value is string;
export declare function isValidOAuthScopeSet(value: unknown, separator?: " " | ","): value is string[];
/** Validate and detach a dense scope array without invoking element getters. */
export declare function normalizeOAuthScopeSet(value: unknown, separator?: " " | ","): string[] | null;
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