import type { BigIntStats } from "node:fs";
export interface PrivateCapabilityTargetReview {
    canonicalPath: string;
    directChildOfConfiguredRoot: true;
    exclusiveCreate: true;
    fileMode: "0600";
    rootCanonical: true;
    rootOwnerMatchesProcess: true;
    rootPrivate: true;
    targetAbsent: true;
}
export interface PrivateCapabilityFileReservation {
    readonly review: PrivateCapabilityTargetReview;
    discard(): Promise<boolean>;
    write(content: string): Promise<void>;
}
export interface PrivateCapabilityFileHandle {
    chmod(mode: number): Promise<void>;
    close(): Promise<void>;
    stat(options: {
        bigint: true;
    }): Promise<BigIntStats>;
    sync(): Promise<void>;
    writeFile(data: string, encoding: BufferEncoding): Promise<void>;
}
export interface PrivateCapabilityFileSystem {
    lstat(path: string, options: {
        bigint: true;
    }): Promise<BigIntStats>;
    open(path: string, flags: number, mode: number): Promise<PrivateCapabilityFileHandle>;
    realpath(path: string): Promise<string>;
    unlink(path: string): Promise<void>;
}
export declare const DEFAULT_PRIVATE_CAPABILITY_FILE_SYSTEM: PrivateCapabilityFileSystem;
export declare class PrivateCapabilityFileError extends Error {
    name: string;
}
export declare function reviewPrivateCapabilityTarget(file: string, roots: readonly string[], fileSystem?: PrivateCapabilityFileSystem): Promise<PrivateCapabilityTargetReview>;
export declare function reservePrivateCapabilityFile(file: string, roots: readonly string[], fileSystem?: PrivateCapabilityFileSystem): Promise<PrivateCapabilityFileReservation>;
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