/** Handler return codes. Callbacks return OK to continue, ABORT to stop. */
export declare enum HandlerStatus {
    OK = 0,
    ABORT = 1,
    SKIP_VARIABLE = 2
}
/** Storage/value type. Numeric values match the C `readstat_type_t` enum. */
export declare enum ReadStatType {
    STRING = 0,
    INT8 = 1,
    INT16 = 2,
    INT32 = 3,
    FLOAT = 4,
    DOUBLE = 5,
    STRING_REF = 6
}
export declare enum ReadStatTypeClass {
    STRING = 0,
    NUMERIC = 1
}
export declare enum ReadStatMeasure {
    UNKNOWN = 0,
    NOMINAL = 1,
    ORDINAL = 2,
    SCALE = 3
}
export declare enum ReadStatAlignment {
    UNKNOWN = 0,
    LEFT = 1,
    CENTER = 2,
    RIGHT = 3
}
export declare enum ReadStatCompress {
    NONE = 0,
    ROWS = 1,
    BINARY = 2
}
export declare enum ReadStatEndian {
    NONE = 0,
    LITTLE = 1,
    BIG = 2
}
/** seek whence flags */
export declare enum ReadStatSeek {
    SET = 0,
    CUR = 1,
    END = 2
}
/** Return the type class (string vs numeric) for a storage type. */
export declare function readstatTypeClass(type: ReadStatType): ReadStatTypeClass;
/** A multiple-response set (SPSS). */
export interface MrSet {
    type: string;
    name: string;
    label: string;
    isDichotomy: boolean;
    countedValue: number;
    subvariables: string[];
}
/** File-level metadata delivered to the metadata handler. */
export interface ReadStatMetadata {
    rowCount: number;
    varCount: number;
    /** creation time — seconds since Unix epoch (like C time_t) */
    creationTime: number;
    /** modification time — seconds since Unix epoch */
    modifiedTime: number;
    fileFormatVersion: number;
    compression: ReadStatCompress;
    endianness: ReadStatEndian;
    tableName: string | null;
    fileLabel: string | null;
    fileEncoding: string | null;
    is64bit: boolean;
    multipleResponseSets: MrSet[];
}
export declare function makeEmptyMetadata(): ReadStatMetadata;