export declare const RESERVED_FILEPATHS: ReadonlySet<string>;
export declare const FILEPATH_MAX_BYTES = 4096;
export declare const BASENAME_MAX_BYTES = 255;
export type FilepathRejection = "not_string" | "empty" | "too_long" | "not_absolute" | "control_char" | "double_slash" | "empty_leaf" | "basename_too_long" | "missing_extension";
export declare function checkFilepath(value: string): FilepathRejection | null;
export declare function isValidFilepath(value: string): boolean;
export declare function isReservedFilepath(value: string): boolean;
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