export interface UnknownPermissionNameErrorOptions {
    /** The name the SDK caller passed to `requestPermission`. */
    readonly observedName: string;
}
export declare class UnknownPermissionNameError extends Error {
    /** The name the SDK caller passed. */
    readonly observedName: string;
    /** Accepted permission-name enum (Web Permissions API + MCP Apps mirror). */
    readonly acceptedNames: readonly string[];
    constructor(opts: UnknownPermissionNameErrorOptions);
}
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