type ScopeOp = '=' | '!=' | '<' | '<=' | '>' | '>=' | '*';
interface ScopeConstraint {
    key: string;
    op: ScopeOp;
    value: string | undefined;
    quoted: boolean;
}
interface Scope {
    product: string;
    verb: string;
    constraints: ScopeConstraint[];
}
declare const REGISTERED_SCOPES: Record<string, {
    keys: string[];
}>;
declare class ScopeParseError extends Error {
    constructor(message: string);
}
declare function parseScope(input: string): Scope;
declare function canonicalizeScope(scope: Scope): string;
declare function canonicalizeScopeString(input: string): string;
interface ValidationOptions {
    mode?: 'strict' | 'permissive';
}
declare function validateScope(scope: Scope, options?: ValidationOptions): void;
declare function isSubScope(exercised: Scope, granted: Scope): boolean;

export { REGISTERED_SCOPES, type Scope, type ScopeConstraint, type ScopeOp, ScopeParseError, type ValidationOptions, canonicalizeScope, canonicalizeScopeString, isSubScope, parseScope, validateScope };