/**
 * @fileoverview Write ACL Error Types
 *
 * Error hierarchy for Write ACL authorization and management operations.
 * These errors are thrown by the WriteAclManager, AuthorizedHeadRegistry,
 * and related components when write authorization checks fail.
 *
 * @see Requirements 3.4, 4.5, 6.4, 6.5
 */
/**
 * Thrown when a write operation is rejected due to missing or invalid Write_Proof
 * in Restricted_Mode or Owner_Only_Mode.
 *
 * @see Requirement 3.4
 */
export declare class WriteAuthorizationError extends Error {
    readonly dbName: string;
    readonly collectionName: string;
    readonly reason: string;
    readonly signerPublicKey?: string | undefined;
    constructor(dbName: string, collectionName: string, reason: string, signerPublicKey?: string | undefined);
}
/**
 * Thrown when an ACL mutation is attempted without a valid administrator signature.
 *
 * @see Requirement 4.1, 4.2, 4.3, 4.4
 */
export declare class AclAdminRequiredError extends Error {
    readonly dbName: string;
    readonly collectionName?: string | undefined;
    readonly operation?: string | undefined;
    constructor(dbName: string, collectionName?: string | undefined, operation?: string | undefined);
}
/**
 * Thrown when a capability token has expired.
 *
 * @see Requirement 6.4
 */
export declare class CapabilityTokenExpiredError extends Error {
    readonly expiresAt: Date;
    readonly currentTime: Date;
    constructor(expiresAt: Date, currentTime: Date);
}
/**
 * Thrown when a capability token's signature does not match any current ACL administrator.
 *
 * @see Requirement 6.5
 */
export declare class CapabilityTokenInvalidError extends Error {
    readonly reason: string;
    readonly grantorPublicKey?: string | undefined;
    constructor(reason: string, grantorPublicKey?: string | undefined);
}
/**
 * Thrown when an attempt is made to remove the last ACL administrator.
 *
 * @see Requirement 4.5
 */
export declare class LastAdministratorError extends Error {
    readonly dbName: string;
    readonly collectionName?: string | undefined;
    constructor(dbName: string, collectionName?: string | undefined);
}
/**
 * Thrown when an ACL document update has a version number less than or equal
 * to the current version.
 *
 * @see Requirement 2.6
 */
export declare class AclVersionConflictError extends Error {
    readonly currentVersion: number;
    readonly incomingVersion: number;
    readonly dbName: string;
    readonly collectionName?: string | undefined;
    constructor(currentVersion: number, incomingVersion: number, dbName: string, collectionName?: string | undefined);
}
/**
 * Thrown when an ACL document's signature fails verification on load.
 *
 * @see Requirement 2.3, 2.4
 */
export declare class AclSignatureVerificationError extends Error {
    readonly documentId: string;
    readonly reason: string;
    constructor(documentId: string, reason: string);
}
/**
 * Thrown when attempting to add a writer who is not in the pool encryption member list.
 *
 * @see Requirement 8.2
 */
export declare class WriterNotInPoolError extends Error {
    readonly writerPublicKey: string;
    readonly dbName: string;
    readonly collectionName?: string | undefined;
    constructor(writerPublicKey: string, dbName: string, collectionName?: string | undefined);
}
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